#include<bits/stdc++.h>
using ll=long long;
using namespace std;

int main(){
	ll n;
	cin>>n;
	vector<ll> a;
	for(ll i=1;i<=n;i++) if(n%i==0) a.push_back(i);
	ll sum=0;
	for(auto &i:a) sum+=i;
	if(sum==2*n){
		cout<<"Yes"<<endl;
	}else{
		cout<<"No"<<endl;
	}
}