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57172054 = 2175331727
BaseRepresentation
bin1101101000011…
…0000001010110
310222120122022111
43122012001112
5104114001204
65401221234
71262645242
oct332060126
9128518274
1057172054
112a2aa235
121719181a
13bac9a24
147843422
155044d04
hex3686056

57172054 has 16 divisors (see below), whose sum is σ = 92518848. Its totient is φ = 26396032.

The previous prime is 57172033. The next prime is 57172061. The reversal of 57172054 is 45027175.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14062 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (5782428).

Almost surely, 257172054 is an apocalyptic number.

57172054 is a deficient number, since it is larger than the sum of its proper divisors (35346794).

57172054 is a wasteful number, since it uses less digits than its factorization.

57172054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31799.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57172054 is about 7561.2204041411. The cubic root of 57172054 is about 385.2369464010.

The spelling of 57172054 in words is "fifty-seven million, one hundred seventy-two thousand, fifty-four".

Divisors: 1 2 17 34 53 106 901 1802 31727 63454 539359 1078718 1681531 3363062 28586027 57172054