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57231418538 = 274087958467
BaseRepresentation
bin110101010011010000…
…100010010010101010
312110201120000021222002
4311103100202102222
51414202220343123
642143003531002
74064151013430
oct652320422252
9173646007862
1057231418538
11222a9709908
12b112829a62
135520cb07c8
142aacccad50
15174e672528
hexd534224aa

57231418538 has 8 divisors (see below), whose sum is σ = 98111003232. Its totient is φ = 24527750796.

The previous prime is 57231418429. The next prime is 57231418547. The reversal of 57231418538 is 83581413275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57231418492 and 57231418501.

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, 2043979220 + ... + 2043979247.

It is an arithmetic number, because the mean of its divisors is an integer number (12263875404).

Almost surely, 257231418538 is an apocalyptic number.

57231418538 is a deficient number, since it is larger than the sum of its proper divisors (40879584694).

57231418538 is a wasteful number, since it uses less digits than its factorization.

57231418538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087958476.

The product of its digits is 806400, while the sum is 47.

The spelling of 57231418538 in words is "fifty-seven billion, two hundred thirty-one million, four hundred eighteen thousand, five hundred thirty-eight".

Divisors: 1 2 7 14 4087958467 8175916934 28615709269 57231418538