#include <bits/stdc++.h>
#define rep(i, n) for(int i = 1; i <= (int)(n) / 2; i++)
using namespace std;
int main() {
    int n;
    cin >> n;
    int sum = 0;
    rep(i, n) {
        if (n % i == 0) sum += i;
    }
    if (sum == n) cout << "Yes";
    else cout << "No";
    return 0;
}