#include <bits/stdc++.h>
#define rep(i, a) for (int i = 0; i < (a); i++)
#define rep2(i, a, b) for (int i = (a); i < (b); i++)
using namespace std;
typedef long long ll;
const ll inf = 1e9;
const ll mod = 1e9 + 7;

vector<ll> fermat;

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

    fermat.push_back((1 << 1) + 1);
    fermat.push_back((1 << 2) + 1);
    fermat.push_back((1 << 4) + 1);
    fermat.push_back((1 << 8) + 1);
    fermat.push_back((1 << 16) + 1);

    int N = fermat.size();

    ll ans = 0;

    rep (i, 1 << N) {
        ll prod = 1;
        rep (j, N) if (i >> j & 1) prod *= fermat[j];
        rep (j, 32) {
            ll x = prod * (1ll << j);
            if (x < 3) continue;
            if (x <= A) {
                ans++;
            } else {
                break;
            }
        }
    }

    cout << ans << endl;
}