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52451037562880 = 211511242331997
BaseRepresentation
bin10111110110100001101010…
…11101100100100000000000
320212201021021222202022102102
423323100311131210200000
523333324211104003010
6303315401330405532
714022314415101465
oct1373206535444000
9225637258668372
1052451037562880
11157923a6343700
125a714424308a8
13233615b2c4a18
14cd49026b566c
1560e58a02bba5
hex2fb435764800

52451037562880 has 144 divisors (see below), whose sum is σ = 138332926384380. Its totient is φ = 19073104117760.

The previous prime is 52451037562877. The next prime is 52451037562949. The reversal of 52451037562880 is 8826573015425.

It can be written as a sum of positive squares in 2 ways, for example, as 49160963974144 + 3290073588736 = 7011488^2 + 1813856^2 .

It is a super-2 number, since 2×524510375628802 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19926959 + ... + 22405038.

Almost surely, 252451037562880 is an apocalyptic number.

It is an amenable number.

52451037562880 is an abundant number, since it is smaller than the sum of its proper divisors (85881888821500).

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

52451037562880 is a wasteful number, since it uses less digits than its factorization.

52451037562880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42332046 (or 42332015 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 56.

The spelling of 52451037562880 in words is "fifty-two trillion, four hundred fifty-one billion, thirty-seven million, five hundred sixty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 128 160 176 220 242 256 320 352 440 484 512 605 640 704 880 968 1024 1210 1280 1408 1760 1936 2048 2420 2560 2816 3520 3872 4840 5120 5632 7040 7744 9680 10240 11264 14080 15488 19360 22528 28160 30976 38720 56320 61952 77440 112640 123904 154880 247808 309760 619520 1239040 42331997 84663994 169327988 211659985 338655976 423319970 465651967 677311952 846639940 931303934 1354623904 1693279880 1862607868 2328259835 2709247808 3386559760 3725215736 4656519670 5122171637 5418495616 6773119520 7450431472 9313039340 10244343274 10836991232 13546239040 14900862944 18626078680 20488686548 21673982464 25610858185 27092478080 29801725888 37252157360 40977373096 43347964928 51221716370 54184956160 59603451776 74504314720 81954746192 86695929856 102443432740 108369912320 119206903552 149008629440 163909492384 204886865480 216739824640 238413807104 298017258880 327818984768 409773730960 433479649280 476827614208 596034517760 655637969536 819547461920 953655228416 1192069035520 1311275939072 1639094923840 2384138071040 2622551878144 3278189847680 4768276142080 5245103756288 6556379695360 10490207512576 13112759390720 26225518781440 52451037562880