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57145887009 = 32232232574817
BaseRepresentation
bin110101001110001010…
…010000100100100001
312110111121001211202200
4311032022100210201
51414013321341014
642130310403413
74062062011401
oct651612204441
9173447054680
1057145887009
11222653aa7a2
12b0aa060569
135509364733
142aa17c4801
151746dc9a09
hexd4e290921

57145887009 has 48 divisors (see below), whose sum is σ = 86873859072. Its totient is φ = 36128784384.

The previous prime is 57145886953. The next prime is 57145887013. The reversal of 57145887009 is 90078854175.

57145887009 is a `hidden beast` number, since 57 + 1 + 4 + 588 + 7 + 0 + 0 + 9 = 666.

It is not a de Polignac number, because 57145887009 - 232 = 52850919713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57145887059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11860969 + ... + 11865785.

It is an arithmetic number, because the mean of its divisors is an integer number (1809872064).

Almost surely, 257145887009 is an apocalyptic number.

It is an amenable number.

57145887009 is a deficient number, since it is larger than the sum of its proper divisors (29727972063).

57145887009 is a wasteful number, since it uses less digits than its factorization.

57145887009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326 (or 5323 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 57145887009 in words is "fifty-seven billion, one hundred forty-five million, eight hundred eighty-seven thousand, nine".

Divisors: 1 3 9 23 69 207 223 257 669 771 2007 2313 4817 5129 5911 14451 15387 17733 43353 46161 53199 57311 110791 171933 332373 515799 997119 1074191 1237969 1318153 3222573 3713907 3954459 9667719 11141721 11863377 24706393 28473287 74119179 85419861 222357537 256259583 276067087 828201261 2484603783 6349543001 19048629003 57145887009