Basic Programming C++ Examples

C++Program to Check if a Number is Harshad Number or not

The Program in C++Program to Check if a Number is Harshad Number or not is given below:

#include <iostream>

using namespace std;

int sumOfDigits(int n) {
    int sum = 0;
    while (n > 0) {
        sum += n % 10;
        n /= 10;
    }
    return sum;
}

bool isHarshadNumber(int n) {
    return n % sumOfDigits(n) == 0;
}

int main() {
    int n;
    cout << "Hello Codeauri Family,Enter a number here to check if its a harshad number or not!:\n ";
    cin >> n;

    if (isHarshadNumber(n)) {
        cout << n << " is a Harshad number." << endl;
    } else {
        cout << n << " is not a Harshad number." << endl;
    }
    return 0;
}

Output:

Hello Codeauri Family,Enter a number here to check if its a harshad number or not!:
60
60 is a Harshad number.

Pro-Tips💡

This program implements a function sumOfDigits to find the sum of the digits of a number.

It also implements a function isHarshadNumber to check if a number is a Harshad number.

A Harshad number is a number that is divisible by the sum of its digits.

The isHarshadNumber function finds the sum of the digits of the number and returns true if the number is divisible by the sum of its digits, otherwise it returns false.

The main function takes a number from the user and calls the isHarshadNumber function to check if it’s a Harshad number.

If it is, the program prints that the number is a Harshad number, otherwise it prints that it is not.

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