Write a program to check whether a number is niven number or not.

A number which can be divided by the sum of its digit is called a niven number or a harshad number.

• The number 18 is a Harshad number in base 10, because the sum of the digits 1 and 8 is 9 (1 + 8 = 9), and 18 is divisible by 9 (since 18 % 9 = 0)

import java.util.*;

class NivenNumber

{

    public static void main(String args[])

    {


        Scanner sc = new Scanner(System.in);

         

        System.out.print("Enter a number : ");

        int n = sc.nextInt();

        int c = n, d, sum = 0;

         

        //finding sum of digits

        while(c>0)

        {

            d = c%10;

            sum = sum + d;

            c = c/10;

        }

         

        if(n%sum == 0)

            System.out.println(n+" is a Harshad Number.");

        else

            System.out.println(n+" is not a Harshad Number.");     

    }

}

output: