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57046187940 = 22357135824257
BaseRepresentation
bin110101001000001101…
…111011111110100100
312110020122110121100120
4311020031323332210
51413312311003230
642112345441540
74056441411510
oct651015737644
9173218417316
1057046187940
11222140a4375
12b0807a02b0
1354c17c7bc1
142a92471140
15173d284310
hexd4837bfa4

57046187940 has 48 divisors (see below), whose sum is σ = 182547802752. Its totient is φ = 13039128576.

The previous prime is 57046187909. The next prime is 57046187951. The reversal of 57046187940 is 4978164075.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67911709 + ... + 67912548.

It is an arithmetic number, because the mean of its divisors is an integer number (3803079224).

Almost surely, 257046187940 is an apocalyptic number.

It is an amenable number.

57046187940 is an abundant number, since it is smaller than the sum of its proper divisors (125501614812).

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

57046187940 is a wasteful number, since it uses less digits than its factorization.

57046187940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135824276 (or 135824274 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 57046187940 in words is "fifty-seven billion, forty-six million, one hundred eighty-seven thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 135824257 271648514 407472771 543297028 679121285 814945542 950769799 1358242570 1629891084 1901539598 2037363855 2716485140 2852309397 3803079196 4074727710 4753848995 5704618794 8149455420 9507697990 11409237588 14261546985 19015395980 28523093970 57046187940