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57111170272 = 25131371002091
BaseRepresentation
bin110101001100000101…
…110100110011100000
312110102011202001100121
4311030011310303200
51413430424422042
642123030330024
74061160636412
oct651405646340
9173364661317
1057111170272
1122247848582
12b09a4b9914
1355020ca8a0
142a9ad489b2
151743d1d367
hexd4c174ce0

57111170272 has 48 divisors (see below), whose sum is σ = 121970629872. Its totient is φ = 26166574080.

The previous prime is 57111170267. The next prime is 57111170279. The reversal of 57111170272 is 27207111175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57111170279) 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, 444054 + ... + 558037.

It is an arithmetic number, because the mean of its divisors is an integer number (2541054789).

Almost surely, 257111170272 is an apocalyptic number.

57111170272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57111170272 is an abundant number, since it is smaller than the sum of its proper divisors (64859459600).

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

57111170272 is a wasteful number, since it uses less digits than its factorization.

57111170272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002251 (or 1002243 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 34.

The spelling of 57111170272 in words is "fifty-seven billion, one hundred eleven million, one hundred seventy thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 137 208 274 416 548 1096 1781 2192 3562 4384 7124 14248 28496 56992 1002091 2004182 4008364 8016728 13027183 16033456 26054366 32066912 52108732 104217464 137286467 208434928 274572934 416869856 549145868 1098291736 1784724071 2196583472 3569448142 4393166944 7138896284 14277792568 28555585136 57111170272