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27840083015680 = 211513209135239
BaseRepresentation
bin1100101010010000001100…
…10000100011100000000000
310122120111010020211101121221
412111020012100203200000
512122112442223000210
6135113320234124424
75602244132061145
oct625100620434000
9118514106741557
1027840083015680
118963a05089011
123157717580714
13126c401bb6190
146c36780363cc
153342b77ab1da
hex195206423800

27840083015680 has 96 divisors (see below), whose sum is σ = 71938339855200. Its totient is φ = 10279415218176.

The previous prime is 27840083015677. The next prime is 27840083015699. The reversal of 27840083015680 is 8651038004872.

It is a Harshad number since it is a multiple of its sum of digits (52).

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 7 ways as a sum of consecutive naturals, for example, 104434500 + ... + 104700739.

It is an arithmetic number, because the mean of its divisors is an integer number (749357706825).

Almost surely, 227840083015680 is an apocalyptic number.

27840083015680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27840083015680 is an abundant number, since it is smaller than the sum of its proper divisors (44098256839520).

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

27840083015680 is a wasteful number, since it uses less digits than its factorization.

27840083015680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209135279 (or 209135259 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 27840083015680 in words is "twenty-seven trillion, eight hundred forty billion, eighty-three million, fifteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 512 520 640 832 1024 1040 1280 1664 2048 2080 2560 3328 4160 5120 6656 8320 10240 13312 16640 26624 33280 66560 133120 209135239 418270478 836540956 1045676195 1673081912 2091352390 2718758107 3346163824 4182704780 5437516214 6692327648 8365409560 10875032428 13384655296 13593790535 16730819120 21750064856 26769310592 27187581070 33461638240 43500129712 53538621184 54375162140 66923276480 87000259424 107077242368 108750324280 133846552960 174000518848 214154484736 217500648560 267693105920 348001037696 428308969472 435001297120 535386211840 696002075392 870002594240 1070772423680 1392004150784 1740005188480 2141544847360 2784008301568 3480010376960 5568016603136 6960020753920 13920041507840 27840083015680