armstrong_number

Armstrong number

Given a number x, determine whether the given number is Armstrong number or not. A positive integer of n digits is called an Armstrong number of order n (order is number of digits) if :

abcd... = pow(a,n) + pow(b,n) + pow(c,n) + pow(d,n) + ....

Example:

Input : 1634
Output : The number is armstrong
1⁴ + 6⁴ + 3⁴ + 4⁴ = 1634