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18795768120072 = 23321913739596579
BaseRepresentation
bin1000100011000001110110…
…00101010000001100001000
32110112212011101201121202200
410101200323011100030020
54430422213114320242
6103550353501400200
73646643440646316
oct421407305201410
973485141647680
1018795768120072
115a9727110aa19
1221368b4869060
13a6458303a788
1448da11a9d0b6
15228dc38c004c
hex11183b150308

18795768120072 has 48 divisors (see below), whose sum is σ = 53584426662000. Its totient is φ = 5935505721696.

The previous prime is 18795768120049. The next prime is 18795768120089. The reversal of 18795768120072 is 27002186759781.

It is a junction number, because it is equal to n+sod(n) for n = 18795768119991 and 18795768120009.

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, 6869796922 + ... + 6869799657.

It is an arithmetic number, because the mean of its divisors is an integer number (1116342222125).

Almost surely, 218795768120072 is an apocalyptic number.

18795768120072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18795768120072 is an abundant number, since it is smaller than the sum of its proper divisors (34788658541928).

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

18795768120072 is a wasteful number, since it uses less digits than its factorization.

18795768120072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739596610 (or 13739596603 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 63.

The spelling of 18795768120072 in words is "eighteen trillion, seven hundred ninety-five billion, seven hundred sixty-eight million, one hundred twenty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 13739596579 27479193158 41218789737 54958386316 82437579474 109916772632 123656369211 164875158948 247312738422 261052335001 329750317896 494625476844 522104670002 783157005003 989250953688 1044209340004 1566314010006 2088418680008 2349471015009 3132628020012 4698942030018 6265256040024 9397884060036 18795768120072