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57428917460 = 2254366777811
BaseRepresentation
bin110101011111000001…
…111011110011010100
312111020022122021112222
4311133001323303110
51420103300324320
642214341001512
74102066513145
oct653701736324
9174208567488
1057428917460
11223a0143762
12b1689b3298
135552ba0585
142acb21bacc
151761b85825
hexd5f07bcd4

57428917460 has 24 divisors (see below), whose sum is σ = 123405396576. Its totient is φ = 22437344160.

The previous prime is 57428917453. The next prime is 57428917499. The reversal of 57428917460 is 6471982475.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33388046 + ... + 33389765.

It is an arithmetic number, because the mean of its divisors is an integer number (5141891524).

Almost surely, 257428917460 is an apocalyptic number.

It is an amenable number.

57428917460 is an abundant number, since it is smaller than the sum of its proper divisors (65976479116).

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

57428917460 is a wasteful number, since it uses less digits than its factorization.

57428917460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66777863 (or 66777861 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 57428917460 in words is "fifty-seven billion, four hundred twenty-eight million, nine hundred seventeen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 66777811 133555622 267111244 333889055 667778110 1335556220 2871445873 5742891746 11485783492 14357229365 28714458730 57428917460