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12488808888 = 2332434033853
BaseRepresentation
bin10111010000110010…
…00001100110111000
31012020100220020002100
423220121001212320
5201034113341023
65423130303400
7621325060353
oct135031014670
935210806070
1012488808888
115329674a66
122506587b60
1312404cbb5a
148668dd29a
154d1627c43
hex2e86419b8

12488808888 has 48 divisors (see below), whose sum is σ = 34610467320. Its totient is φ = 4066122816.

The previous prime is 12488808887. The next prime is 12488808973. The reversal of 12488808888 is 88880888421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12488808881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2013831 + ... + 2020022.

Almost surely, 212488808888 is an apocalyptic number.

12488808888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12488808888 is an abundant number, since it is smaller than the sum of its proper divisors (22121658432).

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

12488808888 is a wasteful number, since it uses less digits than its factorization.

12488808888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033908 (or 4033901 counting only the distinct ones).

The product of its (nonzero) digits is 16777216, while the sum is 63.

The spelling of 12488808888 in words is "twelve billion, four hundred eighty-eight million, eight hundred eight thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 43 72 86 129 172 258 344 387 516 774 1032 1548 3096 4033853 8067706 12101559 16135412 24203118 32270824 36304677 48406236 72609354 96812472 145218708 173455679 290437416 346911358 520367037 693822716 1040734074 1387645432 1561101111 2081468148 3122202222 4162936296 6244404444 12488808888