#include <iostream>
#include <cstdio>

using namespace std;
inline int Cnt(const int x)
{
    int cnt = 0,i;
    for(i=1;i*i<x;++i)
        if(x%i==0){
            ++cnt;
            if(x/i<=710)
                ++cnt;
        }
    if(i*i==x)
        ++cnt;
    return cnt;
}
int main()
{
    int nr = 0;
    freopen("test.out","w",stdout);
    for(int i=1;i<=500000;++i)
    {
        int  x = Cnt(i);
        if(x>=60)
            ++nr;
    }
    cout<<nr;
    return 0;
}