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18876000012 = 2236912276411
BaseRepresentation
bin10001100101000110…
…001110011100001100
31210201111112011010120
4101211012032130030
5302124224000022
612401014104540
71235523232002
oct214506163414
953644464116
1018876000012
118007012211
1237a964b150
131a1a872c9c
14cb0cdaa72
15757243d5c
hex46518e70c

18876000012 has 24 divisors (see below), whose sum is σ = 44107758912. Its totient is φ = 6282891600.

The previous prime is 18876000001. The next prime is 18876000029. The reversal of 18876000012 is 21000067881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129914 + ... + 1146497.

It is an arithmetic number, because the mean of its divisors is an integer number (1837823288).

Almost surely, 218876000012 is an apocalyptic number.

18876000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18876000012 is an abundant number, since it is smaller than the sum of its proper divisors (25231758900).

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

18876000012 is a wasteful number, since it uses less digits than its factorization.

18876000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277109 (or 2277107 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

Adding to 18876000012 its reverse (21000067881), we get a palindrome (39876067893).

The spelling of 18876000012 in words is "eighteen billion, eight hundred seventy-six million, twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 691 1382 2073 2764 4146 8292 2276411 4552822 6829233 9105644 13658466 27316932 1573000001 3146000002 4719000003 6292000004 9438000006 18876000012