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57086783712 = 2532731913447
BaseRepresentation
bin110101001010101000…
…110011000011100000
312110100110212002021200
4311022220303003200
51413403204034322
642120355521200
74060443440520
oct651250630340
9173313762250
1057086783712
11222350015a2
12b0922b9200
1354ca03c97a
142a979db680
151741b028ac
hexd4aa330e0

57086783712 has 144 divisors (see below), whose sum is σ = 191517161472. Its totient is φ = 15784346880.

The previous prime is 57086783711. The next prime is 57086783723. The reversal of 57086783712 is 21738768075.

57086783712 is a `hidden beast` number, since 570 + 8 + 67 + 8 + 3 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57086783711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394228 + ... + 519219.

It is an arithmetic number, because the mean of its divisors is an integer number (1329980288).

Almost surely, 257086783712 is an apocalyptic number.

It is an amenable number.

57086783712 is an abundant number, since it is smaller than the sum of its proper divisors (134430377760).

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

57086783712 is a wasteful number, since it uses less digits than its factorization.

57086783712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913501 (or 913490 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 57086783712 in words is "fifty-seven billion, eighty-six million, seven hundred eighty-three thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 31 32 36 42 48 56 62 63 72 84 93 96 112 124 126 144 168 186 217 224 248 252 279 288 336 372 434 496 504 558 651 672 744 868 992 1008 1116 1302 1488 1736 1953 2016 2232 2604 2976 3472 3906 4464 5208 6944 7812 8928 10416 15624 20832 31248 62496 913447 1826894 2740341 3653788 5480682 6394129 7307576 8221023 10961364 12788258 14615152 16442046 19182387 21922728 25576516 28316857 29230304 32884092 38364774 43845456 51153032 56633714 57547161 65768184 76729548 84950571 87690912 102306064 113267428 115094322 131536368 153459096 169901142 198217999 204612128 226534856 230188644 254851713 263072736 306918192 339802284 396435998 453069712 460377288 509703426 594653997 613836384 679604568 792871996 906139424 920754576 1019406852 1189307994 1359209136 1585743992 1783961991 1841509152 2038813704 2378615988 2718418272 3171487984 3567923982 4077627408 4757231976 6342975968 7135847964 8155254816 9514463952 14271695928 19028927904 28543391856 57086783712