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13857158688 = 253677927271
BaseRepresentation
bin11001110011111001…
…10111011000100000
31022202201200121010120
430321330313120200
5211334413034223
610211011000240
71000251622362
oct147174673040
938681617116
1013857158688
11597100646a
122828899080
1313cab484a9
14956532d32
15561819be3
hex339f37620

13857158688 has 96 divisors (see below), whose sum is σ = 37386639360. Its totient is φ = 4492350720.

The previous prime is 13857158687. The next prime is 13857158729. The reversal of 13857158688 is 88685175831.

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

It is not an unprimeable number, because it can be changed into a prime (13857158683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494493 + ... + 521763.

It is an arithmetic number, because the mean of its divisors is an integer number (389444160).

Almost surely, 213857158688 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 13857158688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18693319680).

13857158688 is an abundant number, since it is smaller than the sum of its proper divisors (23529480672).

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

13857158688 is a wasteful number, since it uses less digits than its factorization.

13857158688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27430 (or 27422 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 60.

The spelling of 13857158688 in words is "thirteen billion, eight hundred fifty-seven million, one hundred fifty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 67 79 96 134 158 201 237 268 316 402 474 536 632 804 948 1072 1264 1608 1896 2144 2528 3216 3792 5293 6432 7584 10586 15879 21172 27271 31758 42344 54542 63516 81813 84688 109084 127032 163626 169376 218168 254064 327252 436336 508128 654504 872672 1309008 1827157 2154409 2618016 3654314 4308818 5481471 6463227 7308628 8617636 10962942 12926454 14617256 17235272 21925884 25852908 29234512 34470544 43851768 51705816 58469024 68941088 87703536 103411632 144345403 175407072 206823264 288690806 433036209 577381612 866072418 1154763224 1732144836 2309526448 3464289672 4619052896 6928579344 13857158688