a = int(input())
P = [1]
while P[-1]*2 <= 10**9:
    P.append(P[-1]*2)

F = [3, 5, 17, 257, 65537]
ans = 0
for p in P:
    for i in range(1<<5):
        x = p
        for j in range(5):
            if (i>>j)&1:
                x *= F[j]
        if 3 <= x <= a:
            ans += 1
print(ans)