{"id":9831,"date":"2023-12-28T18:12:51","date_gmt":"2023-12-28T12:42:51","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=9831"},"modified":"2024-03-25T19:17:42","modified_gmt":"2024-03-25T13:47:42","slug":"c-program-to-check-harshad-number","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/c-program-to-check-harshad-number\/","title":{"rendered":"C Program to Check Whether a Number is a Harshad Number or Not"},"content":{"rendered":"\n<p>Hey folks, today you will learn <strong>how to check whether a number is a Harshad number or not in the C programming language<\/strong>.<\/p>\n\n\n\n<p>Let&#8217;s first know about Harshad number.<\/p>\n\n\n\n<p>If a number is divisible by the sum of its digits, then that number is a Harshad Number. For example, 144 is a Harshad number because 1 + 4 + 4 = 9, and 144 is divisible by 9. Some other examples of Harshad numbers are 18, 27, 54, 156, 1729, and so on.<\/p>\n\n\n\n<p>A Harshad number is also called a &#8216;Niven Number&#8217;.<\/p>\n\n\n\n<p>The below program prompts the user to enter a number, then it displays the message whether the entered number is a Harshad number or not.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6640a5cb09807\" class=\"ez-toc-cssicon-toggle-label\"><label class=\"ez-toc-title\">Table of Contents<\/label>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0090ff;color:#0090ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0090ff;color:#0090ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6640a5cb09807\" checked \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.codingbroz.com\/c-program-to-check-harshad-number\/#C_Program_to_Check_Whether_a_Number_is_a_Harshad_Number_or_Not\" title=\"C Program to Check Whether a Number is a Harshad Number or Not\">C Program to Check Whether a Number is a Harshad Number or Not<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.codingbroz.com\/c-program-to-check-harshad-number\/#How_Does_This_Program_Work\" title=\"How Does This Program Work?\">How Does This Program Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.codingbroz.com\/c-program-to-check-harshad-number\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"C_Program_to_Check_Whether_a_Number_is_a_Harshad_Number_or_Not\"><\/span><strong>C Program to Check Whether a Number is a Harshad Number or Not<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>C Program<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ C Program to Check Whether a Number is Harshad Number or Not\n#include &lt;stdio.h>\n\nint main()\n{\n    int num, n, rem = 0, sum = 0;\n\n    \/\/ Asking for input\n    printf(\"Enter a number to check: \");\n    scanf(\"%d\", &amp;num);\n\n    n = num;\n\n    \/\/ Calculating the sum\n    while (num > 0)\n    {\n        rem = num % 10;\n        sum = sum + rem;\n        num = num \/ 10;\n    }\n\n    \/\/ Check whether number is equal to the sum\n    if (n % sum == 0)\n    {\n        printf(\"%d is a harshad number.\", n);\n    }\n    else\n    {\n        printf(\"%d is not a harshad number.\", n);\n    }\n\n    return 0;\n}<\/pre>\n\n\n\n<p><strong>Output 1<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-2-background-color has-text-color has-background has-link-color wp-elements-cc26db68a8814d0a40e791d3a4aa78a4\" style=\"border-radius:10px\"><code>Enter a number to check: 45\n45 is a harshad number.<\/code><\/pre>\n\n\n\n<p><strong>Output 2<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-2-background-color has-text-color has-background has-link-color wp-elements-bc45241df50cea6e4379e9c7f15b982a\" style=\"border-radius:10px\"><code>Enter a number to check: 33\n33 is not a harshad number.<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_This_Program_Work\"><\/span><strong>How Does This Program Work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    int num, n, rem = 0, sum = 0;\n<\/pre>\n\n\n\n<p>In this program, we have declared four int data type variables named <code>num<\/code>, <code>n<\/code>, <code>rem<\/code>, and <code>sum<\/code>.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    printf(\"Enter a number to check: \");\n    scanf(\"%d\", &amp;num);\n<\/pre>\n\n\n\n<p>Then, the program prompts the user to enter a number. The <code>scanf()<\/code> function is used to read the number entered by the user and store it in the <code>num<\/code> variable.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    n = num;\n<\/pre>\n\n\n\n<p>We store the value of the original number in the <code>n<\/code> variable to use it later in the comparison.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    while (num > 0)\n    {\n        rem = num % 10;\n        sum = sum + rem;\n        num = num \/ 10;\n    }\n<\/pre>\n\n\n\n<p>Then, we use a loop to calculate the sum of digits of the entered number. Suppose the user entered the number 45, then:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-border-color has-ast-global-color-2-border-color\" style=\"border-width:1px\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Iteration<\/td><td class=\"has-text-align-center\" data-align=\"center\">rem = num % 10<\/td><td class=\"has-text-align-center\" data-align=\"center\">sum = sum + rem<\/td><td class=\"has-text-align-center\" data-align=\"center\">num = num \/10<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">45 &gt; 0<\/td><td class=\"has-text-align-center\" data-align=\"center\">45 % 10 = 5<\/td><td class=\"has-text-align-center\" data-align=\"center\">sum = 0 + 5 = 5<\/td><td class=\"has-text-align-center\" data-align=\"center\">num = 45 \/ 10<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">4 &gt; 0<\/td><td class=\"has-text-align-center\" data-align=\"center\">4 % 10 = 4<\/td><td class=\"has-text-align-center\" data-align=\"center\">sum = 5 + 4 = 9<\/td><td class=\"has-text-align-center\" data-align=\"center\">num = 4 \/ 10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The sum will be 9.<\/p>\n\n\n\n<p>Now, we check whether the original number is divisible by the sum of digits or not.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    if (n % sum == 0)\n    {\n        printf(\"%d is a harshad number.\", n);\n    }\n    else\n    {\n        printf(\"%d is not a harshad number.\", n);\n    }<\/pre>\n\n\n\n<ul>\n<li>If the original number is completely divisible by the sum of digits of the original number, then that number is a Harshad number.<\/li>\n\n\n\n<li>If the original number is not completely divisible by the sum of digits, then the entered number is not a Harshad number.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>I hope after going through this tutorial, you understand how to check whether a number is a Harshad number or not using the C programming language.<\/p>\n\n\n\n<p>You can use the same logic to check for Harshad number in other programming languages.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If a number is divisible by the sum of its digits, then that number is a Harshad Number. For example, 144 is a Harshad number because 1 + 4 + 4 = 9, and 144 is divisible by 9. Some other examples of Harshad numbers are 18, 27, 54, 12, 156, 1729, and so on.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[294],"tags":[209],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/9831"}],"collection":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/comments?post=9831"}],"version-history":[{"count":10,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/9831\/revisions"}],"predecessor-version":[{"id":10067,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/9831\/revisions\/10067"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=9831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=9831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=9831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}