#include <iostream>
#include <vector>
#include <string>
using namespace std;
typedef long long ll;

long F[] = { 3, 5, 17, 257, 65537 };

int main() {
	ll a;
	cin >> a;

	int ans = 0;
	for(int i = 0; i <= 29; i++) {
		for(int j = 0; j < (1 << 5); j++) {
			ll b = 1 << i;
			for(int k = 0; k < 5; k++) {
				if(j & (1 << k)) {
					b *= F[k];
				}
			}
			if(3 <= b && b <= a) ans++;
		}
	}
	cout << ans << endl;
}