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18690056133575 = 5219176832225159
BaseRepresentation
bin1000011111111100111100…
…01010000001101111000111
32110011202022010222022002112
410033332132022001233013
54422204213332233300
6103430032050531235
73636212004620051
oct417763612015707
973152263868075
1018690056133575
115a56454490922
12211a311b96b1b
13a57607024288
144888641a28d1
15226287e8ee35
hex10ff9e281bc7

18690056133575 has 24 divisors (see below), whose sum is σ = 24396832252800. Its totient is φ = 14164287752160.

The previous prime is 18690056133559. The next prime is 18690056133641. The reversal of 18690056133575 is 57533165009681.

It is not a de Polignac number, because 18690056133575 - 24 = 18690056133559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7286846 + ... + 9512004.

It is an arithmetic number, because the mean of its divisors is an integer number (1016534677200).

Almost surely, 218690056133575 is an apocalyptic number.

18690056133575 is a deficient number, since it is larger than the sum of its proper divisors (5706776119225).

18690056133575 is a wasteful number, since it uses less digits than its factorization.

18690056133575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242871 (or 2242866 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 59.

The spelling of 18690056133575 in words is "eighteen trillion, six hundred ninety billion, fifty-six million, one hundred thirty-three thousand, five hundred seventy-five".

Divisors: 1 5 19 25 95 475 17683 88415 335977 442075 1679885 2225159 8399425 11125795 42278021 55628975 211390105 1056950525 39347486597 196737432985 747602245343 983687164925 3738011226715 18690056133575