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57487278475 = 52112101188159
BaseRepresentation
bin110101100010100000…
…100100000110001011
312111101101110022211001
4311202200210012023
51420213220402400
642224223515431
74103405542654
oct654240440613
9174341408731
1057487278475
1122420085200
12b184458b77
135561cc5513
142ad4c9052b
151766d62a6a
hexd6282418b

57487278475 has 36 divisors (see below), whose sum is σ = 79129935360. Its totient is φ = 41394760000.

The previous prime is 57487278439. The next prime is 57487278481.

57487278475 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-57487278475 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 211446 + ... + 399604.

It is an arithmetic number, because the mean of its divisors is an integer number (2198053760).

Almost surely, 257487278475 is an apocalyptic number.

57487278475 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57487278475 is a deficient number, since it is larger than the sum of its proper divisors (21642656885).

57487278475 is a wasteful number, since it uses less digits than its factorization.

57487278475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188292 (or 188276 counting only the distinct ones).

The product of its digits is 122931200, while the sum is 64.

The spelling of 57487278475 in words is "fifty-seven billion, four hundred eighty-seven million, two hundred seventy-eight thousand, four hundred seventy-five".

Divisors: 1 5 11 25 55 101 121 275 505 605 1111 2525 3025 5555 12221 27775 61105 188159 305525 940795 2069749 4703975 10348745 19004059 22767239 51743725 95020295 113836195 209044649 475101475 569180975 1045223245 2299491139 5226116225 11497455695 57487278475