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12008887680538 = 27857777691467
BaseRepresentation
bin1010111011000000100101…
…1110111111111000011010
31120112001001000211001110201
42232300021132333320122
53033223200221234123
641312450135532414
72346420301031410
oct256601136777032
946461030731421
1012008887680538
11390aa3902a831
12141b4a022a10a
13691582b04b58
142d733a1172b0
1515c5a33125ad
hexaec097bfe1a

12008887680538 has 8 divisors (see below), whose sum is σ = 20586664595232. Its totient is φ = 5146666148796.

The previous prime is 12008887680497. The next prime is 12008887680619. The reversal of 12008887680538 is 83508678880021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12008887680538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428888845720 + ... + 428888845747.

It is an arithmetic number, because the mean of its divisors is an integer number (2573333074404).

Almost surely, 212008887680538 is an apocalyptic number.

12008887680538 is a deficient number, since it is larger than the sum of its proper divisors (8577776914694).

12008887680538 is an equidigital number, since it uses as much as digits as its factorization.

12008887680538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857777691476.

The product of its (nonzero) digits is 41287680, while the sum is 64.

The spelling of 12008887680538 in words is "twelve trillion, eight billion, eight hundred eighty-seven million, six hundred eighty thousand, five hundred thirty-eight".

Divisors: 1 2 7 14 857777691467 1715555382934 6004443840269 12008887680538