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57164474531 = 108752589213
BaseRepresentation
bin110101001111010001…
…001010100010100011
312110112220001012001102
4311033101022202203
51414033101141111
642132213025015
74062406005413
oct651721124243
9173486035042
1057164474531
112227494588a
12b0b432516b
135510171c78
142aa4062643
15174884c13b
hexd4f44a8a3

57164474531 has 4 divisors (see below), whose sum is σ = 57217064832. Its totient is φ = 57111884232.

The previous prime is 57164474527. The next prime is 57164474561. The reversal of 57164474531 is 13547446175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57164474531 - 22 = 57164474527 is a prime.

It is a super-2 number, since 2×571644745312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57164474561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26293520 + ... + 26295693.

It is an arithmetic number, because the mean of its divisors is an integer number (14304266208).

Almost surely, 257164474531 is an apocalyptic number.

57164474531 is a deficient number, since it is larger than the sum of its proper divisors (52590301).

57164474531 is a wasteful number, since it uses less digits than its factorization.

57164474531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52590300.

The product of its digits is 1411200, while the sum is 47.

The spelling of 57164474531 in words is "fifty-seven billion, one hundred sixty-four million, four hundred seventy-four thousand, five hundred thirty-one".

Divisors: 1 1087 52589213 57164474531