Python, 6995 6862 6732

Just a simple RSA function. Pretty lame, but beats some answers.

M=0x5437b3a3b1
P=0x65204c34d
def H(s):
    n=0
    for i in range(len(s)):
        n+=pow(ord(s[i]),P,M)<<i
    return n%(8**8)