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57081512112 = 2431189198169
BaseRepresentation
bin110101001010010100…
…101100000010110000
312110100002221021000020
4311022110230002300
51413400331341422
642120050523440
74060350563442
oct651224540260
9173302837006
1057081512112
11222320309a9
12b090596580
1354c8c15391
142a97028492
15174141095c
hexd4a52c0b0

57081512112 has 20 divisors (see below), whose sum is σ = 147460573080. Its totient is φ = 19027170688.

The previous prime is 57081512099. The next prime is 57081512141. The reversal of 57081512112 is 21121518075.

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, 594599037 + ... + 594599132.

It is an arithmetic number, because the mean of its divisors is an integer number (7373028654).

Almost surely, 257081512112 is an apocalyptic number.

It is an amenable number.

57081512112 is an abundant number, since it is smaller than the sum of its proper divisors (90379060968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57081512112 is a wasteful number, since it uses less digits than its factorization.

57081512112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189198180 (or 1189198174 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 33.

The spelling of 57081512112 in words is "fifty-seven billion, eighty-one million, five hundred twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 1189198169 2378396338 3567594507 4756792676 7135189014 9513585352 14270378028 19027170704 28540756056 57081512112