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18842000544 = 253379276049
BaseRepresentation
bin10001100011000100…
…100001110010100000
31210122010112210122000
4101203010201302200
5302042023004134
612353401244000
71234631235123
oct214304416240
953563483560
1018842000544
117a998aa984
12379a193600
131a137ca763
14caa5aa3ba
15754279e99
hex463121ca0

18842000544 has 96 divisors (see below), whose sum is σ = 55651680000. Its totient is φ = 6201142272.

The previous prime is 18842000501. The next prime is 18842000557. The reversal of 18842000544 is 44500024881.

18842000544 is a `hidden beast` number, since 18 + 84 + 20 + 0 + 0 + 544 = 666.

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 18842000499 and 18842000508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69769 + ... + 206280.

It is an arithmetic number, because the mean of its divisors is an integer number (579705000).

Almost surely, 218842000544 is an apocalyptic number.

It is an amenable number.

18842000544 is an abundant number, since it is smaller than the sum of its proper divisors (36809679456).

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

18842000544 is a wasteful number, since it uses less digits than its factorization.

18842000544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276147 (or 276133 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The spelling of 18842000544 in words is "eighteen billion, eight hundred forty-two million, five hundred forty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 79 96 108 144 158 216 237 288 316 432 474 632 711 864 948 1264 1422 1896 2133 2528 2844 3792 4266 5688 7584 8532 11376 17064 22752 34128 68256 276049 552098 828147 1104196 1656294 2208392 2484441 3312588 4416784 4968882 6625176 7453323 8833568 9937764 13250352 14906646 19875528 21807871 26500704 29813292 39751056 43615742 59626584 65423613 79502112 87231484 119253168 130847226 174462968 196270839 238506336 261694452 348925936 392541678 523388904 588812517 697851872 785083356 1046777808 1177625034 1570166712 2093555616 2355250068 3140333424 4710500136 6280666848 9421000272 18842000544