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57053186428 = 2272551798751
BaseRepresentation
bin110101001000101000…
…101000100101111100
312110021010122011110211
4311020220220211330
51413321103431203
642113155442204
74056555040330
oct651050504574
9173233564424
1057053186428
1122218044447
12b082bb6364
1354c30a8514
142a933737c0
15173dbb7c6d
hexd48a2897c

57053186428 has 24 divisors (see below), whose sum is σ = 114151245824. Its totient is φ = 24441750000.

The previous prime is 57053186423. The next prime is 57053186431. The reversal of 57053186428 is 82468135075.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57053186423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327948 + ... + 470803.

Almost surely, 257053186428 is an apocalyptic number.

It is an amenable number.

57053186428 is an abundant number, since it is smaller than the sum of its proper divisors (57098059396).

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

57053186428 is a wasteful number, since it uses less digits than its factorization.

57053186428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801313 (or 801311 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 57053186428 in words is "fifty-seven billion, fifty-three million, one hundred eighty-six thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 2551 5102 10204 17857 35714 71428 798751 1597502 3195004 5591257 11182514 22365028 2037613801 4075227602 8150455204 14263296607 28526593214 57053186428