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18713006806 = 213719731031
BaseRepresentation
bin10001011011011000…
…011101001011010110
31210022010211020111011
4101123120131023112
5301311012204211
612332512402434
71231503635104
oct213330351326
953263736434
1018713006806
117a33005a8a
123762b4641a
1319c2b74cc0
14c973ccc74
15747c99921
hex45b61d2d6

18713006806 has 8 divisors (see below), whose sum is σ = 30228703344. Its totient is φ = 8636772360.

The previous prime is 18713006777. The next prime is 18713006821. The reversal of 18713006806 is 60860031781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359865490 + ... + 359865541.

It is an arithmetic number, because the mean of its divisors is an integer number (3778587918).

Almost surely, 218713006806 is an apocalyptic number.

18713006806 is a deficient number, since it is larger than the sum of its proper divisors (11515696538).

18713006806 is a wasteful number, since it uses less digits than its factorization.

18713006806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719731046.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 18713006806 in words is "eighteen billion, seven hundred thirteen million, six thousand, eight hundred six".

Divisors: 1 2 13 26 719731031 1439462062 9356503403 18713006806