#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000
#define int long long

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

signed main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int A; cin >> A;
	set<int> st;

	int s = 1;
	while (s <= A) {
		rep(i, 32) {
			int num = s;
			int bit = i;
			rep(j, 5) {
				if (bit % 2 == 1) num *= F[j];
				if (num > A) break;
				bit /= 2;
			}
			if (num <= A && num > 2) {
				st.insert(num);
				//cout << num << endl;
			}
		}
		s *= 2;
	}
	//for (auto itr = st.begin(); itr != st.end(); ++itr) {
	//	std::cout << *itr << "\n";   
	//}
	cout << st.size() << endl;

    return 0;
}