Harshad Number or Niven Number

Harshad Number

It’s also called Niven Number

A Number which is divisible by sum of its digits is known as Harshad Numer or Niven Number

For example

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30,……………

//Program to check whether the entered number is Harshad or Not

# include <stdio.h>

# include <conio.h>

void main()

{

          //initialization of variables

          int n,c,d,sum=0;

          clrscr();

          //Entry of integer value

          printf("Enter any integer value\n");

          scanf("%d",&n);

          //saving entered value in new variable c

          c=n;

          //loop initialization

          while(c>0)

          {

                   d = c % 10; //remainder when divided by 10

                   sum = sum +d; //adding to variable sum

                   c=c/10; //calculation of quotient

          }

          //check whether entered number is divisible

          //by sum of the digits or not

          if (n % sum == 0)

                   printf("%d is Harshad Number",n);

          else

                   printf("%d is not a Harshad Number",n);

          getch();

}