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57972661032 = 233111323372497
BaseRepresentation
bin110101111111011100…
…001001101100101000
312112122012210022111210
4311333130021230220
51422212000123112
642344323153120
74121421326316
oct657734115450
9175565708453
1057972661032
112264a068310
12b29ab157a0
13560b730130
142b3d51d0b6
15179478eb3c
hexd7f709b28

57972661032 has 128 divisors (see below), whose sum is σ = 171002482560. Its totient is φ = 16146309120.

The previous prime is 57972660997. The next prime is 57972661081. The reversal of 57972661032 is 23016627975.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763408 + ... + 835904.

It is an arithmetic number, because the mean of its divisors is an integer number (1335956895).

Almost surely, 257972661032 is an apocalyptic number.

57972661032 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57972661032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85501241280).

57972661032 is an abundant number, since it is smaller than the sum of its proper divisors (113029821528).

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

57972661032 is a wasteful number, since it uses less digits than its factorization.

57972661032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72763 (or 72759 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 57972661032 in words is "fifty-seven billion, nine hundred seventy-two million, six hundred sixty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 104 132 143 156 233 264 286 312 429 466 572 699 858 932 1144 1398 1716 1864 2563 2796 3029 3432 5126 5592 6058 7689 9087 10252 12116 15378 18174 20504 24232 30756 33319 36348 61512 66638 72497 72696 99957 133276 144994 199914 217491 266552 289988 399828 434982 579976 797467 799656 869964 942461 1594934 1739928 1884922 2392401 2827383 3189868 3769844 4784802 5654766 6379736 7539688 9569604 10367071 11309532 16891801 19139208 20734142 22619064 31101213 33783602 41468284 50675403 62202426 67567204 82936568 101350806 124404852 135134408 185809811 202701612 219593413 248809704 371619622 405403224 439186826 557429433 658780239 743239244 878373652 1114858866 1317560478 1486478488 1756747304 2229717732 2415527543 2635120956 4459435464 4831055086 5270241912 7246582629 9662110172 14493165258 19324220344 28986330516 57972661032