Harshad Number
A Harshad number is divisible by the sum of its digits (18: 1+8 = 9, and 9 | 18). Is N Harshad?
Input: one integer N.
Output: YES or NO.
Constraints:
- 1 ≤ N ≤ 109
Sample Tests
Input 1
18
Output 1
YES
Input 2
19
Output 2
NO
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