Abundant number
A number is said to be abundant number if value of sum of all divisors of the given number is greater than the given number.
Eg
Given number = 12;
Divisors of given number(12) = 1, 2, 3, 4, 6.
Sum of the Divisors = 15
Sum value (15) > Given Number(12)
So the given number is known as abundant number.
Problem Statement
Write a c program to check whether the given number is an abundant number or not.
Solution
#include<stdio.h>
int main()
{
int n,i,sum=0;
scanf("%d",&n);
for(i=1;i<n;i++)
{
if(n%i==0)
{
sum=sum+i;
}
}
if(sum>n)
{
printf("abundant number");
}
else
printf("not a abundant number");
return 0;
}
Input
18
Output
abundant number
Program Explanation
- In this c program, we will check the given number is an abundant number or not
- Here stdio.h header file is declared for standard input and output functions.
- Integer variables declared are n, i and sum.
- Get the input value through scanf function.
- In for loop check for divisors of given number and then add the divisors stored in sum variable.
- using if else condition check the sum value with the input number in order to verify for abundant number or not.
- If sum value greater than the input number then the given number is an abundant number.
- Finally the output of the given number is displayed using printf function.
