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86864311392 = 25317109488309
BaseRepresentation
bin101000011100110000…
…1000011010001100000
322022012201112020000020
41100321201003101200
52410344230431032
6103523243353440
76163402315155
oct1207141032140
9268181466006
1086864311392
1133925703901
1214a02822880
1382642acc31
1442c069422c
1523d5e33b2c
hex1439843460

86864311392 has 96 divisors (see below), whose sum is σ = 243647157600. Its totient is φ = 27001479168.

The previous prime is 86864311357. The next prime is 86864311421. The reversal of 86864311392 is 29311346868.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66267 + ... + 422042.

It is an arithmetic number, because the mean of its divisors is an integer number (2537991225).

Almost surely, 286864311392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86864311392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121823578800).

86864311392 is an abundant number, since it is smaller than the sum of its proper divisors (156782846208).

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

86864311392 is a wasteful number, since it uses less digits than its factorization.

86864311392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488448 (or 488440 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The spelling of 86864311392 in words is "eighty-six billion, eight hundred sixty-four million, three hundred eleven thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 109 136 204 218 272 327 408 436 544 654 816 872 1308 1632 1744 1853 2616 3488 3706 5232 5559 7412 10464 11118 14824 22236 29648 44472 59296 88944 177888 488309 976618 1464927 1953236 2929854 3906472 5859708 7812944 8301253 11719416 15625888 16602506 23438832 24903759 33205012 46877664 49807518 53225681 66410024 99615036 106451362 132820048 159677043 199230072 212902724 265640096 319354086 398460144 425805448 638708172 796920288 851610896 904836577 1277416344 1703221792 1809673154 2554832688 2714509731 3619346308 5109665376 5429019462 7238692616 10858038924 14477385232 21716077848 28954770464 43432155696 86864311392