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57156134686 = 274082581049
BaseRepresentation
bin110101001110110001…
…010110011100011110
312110112022100110221021
4311032301112130132
51414023432302221
642131314154354
74062245062120
oct651661263436
9173468313837
1057156134686
1122270169a52
12b0b15829ba
13550b511c51
142aa2cd1210
151747c51041
hexd4ec5671e

57156134686 has 8 divisors (see below), whose sum is σ = 97981945200. Its totient is φ = 24495486288.

The previous prime is 57156134669. The next prime is 57156134699. The reversal of 57156134686 is 68643165175.

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, 2041290511 + ... + 2041290538.

It is an arithmetic number, because the mean of its divisors is an integer number (12247743150).

Almost surely, 257156134686 is an apocalyptic number.

57156134686 is a deficient number, since it is larger than the sum of its proper divisors (40825810514).

57156134686 is a wasteful number, since it uses less digits than its factorization.

57156134686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082581058.

The product of its digits is 3628800, while the sum is 52.

The spelling of 57156134686 in words is "fifty-seven billion, one hundred fifty-six million, one hundred thirty-four thousand, six hundred eighty-six".

Divisors: 1 2 7 14 4082581049 8165162098 28578067343 57156134686