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18473725084 = 2241920035503
BaseRepresentation
bin10001001101000111…
…101010110010011100
31202200110120110200011
4101031013222302130
5300313233200314
612253044013004
71222540033543
oct211507526234
952613513604
1018473725084
11791aa330a1
1236b6991164
131985416099
14c7370315a
15731c814c4
hex44d1eac9c

18473725084 has 24 divisors (see below), whose sum is σ = 32428247040. Its totient is φ = 9208543344.

The previous prime is 18473725063. The next prime is 18473725091. The reversal of 18473725084 is 48052737481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3354277 + ... + 3359779.

It is an arithmetic number, because the mean of its divisors is an integer number (1351176960).

Almost surely, 218473725084 is an apocalyptic number.

It is an amenable number.

18473725084 is a deficient number, since it is larger than the sum of its proper divisors (13954521956).

18473725084 is a wasteful number, since it uses less digits than its factorization.

18473725084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 18473725084 in words is "eighteen billion, four hundred seventy-three million, seven hundred twenty-five thousand, eighty-four".

Divisors: 1 2 4 419 838 1676 2003 4006 5503 8012 11006 22012 839257 1678514 2305757 3357028 4611514 9223028 11022509 22045018 44090036 4618431271 9236862542 18473725084