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999992000015 = 57571321199999
BaseRepresentation
bin11101000110101000010…
…10101111111000001111
310112121011011100222120022
432203110022233320033
5112340440423000030
62043220123012355
7132150506516321
oct16432412577017
93477134328508
10999992000015
11356104461438
1214197b36a0bb
13733b6727418
1436585363611
151b02abd5de5
hexe8d42afe0f

999992000015 has 16 divisors (see below), whose sum is σ = 1202491200000. Its totient is φ = 798328016640.

The previous prime is 999991999997. The next prime is 999992000039. The reversal of 999992000015 is 510000299999.

It is a Cunningham number, because it is equal to 9999962-1.

It is not a de Polignac number, because 999992000015 - 226 = 999924891151 is a prime.

It is a congruent number.

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, 4899986 + ... + 5099984.

It is an arithmetic number, because the mean of its divisors is an integer number (75155700000).

Almost surely, 2999992000015 is an apocalyptic number.

999992000015 is a deficient number, since it is larger than the sum of its proper divisors (202499199985).

999992000015 is a wasteful number, since it uses less digits than its factorization.

999992000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202082.

The product of its (nonzero) digits is 590490, while the sum is 53.

The spelling of 999992000015 in words is "nine hundred ninety-nine billion, nine hundred ninety-two million, fifteen", and thus it is an aban number.

Divisors: 1 5 757 1321 3785 6605 199999 999995 999997 4999985 151399243 264198679 756996215 1320993395 199998400003 999992000015