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12916251880 = 2357112341077
BaseRepresentation
bin11000000011101111…
…00101110011101000
31020100011012120122021
430001313211303220
5202423030030010
65533400034224
7635035221010
oct140167456350
936304176567
1012916251880
115528984234
122605762974
1312aac2b5bc
148a75a8c40
15508e0c8da
hex301de5ce8

12916251880 has 64 divisors (see below), whose sum is σ = 33243603840. Its totient is φ = 4424378112.

The previous prime is 12916251877. The next prime is 12916251883. The reversal of 12916251880 is 8815261921.

12916251880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12916251877) and next prime (12916251883).

It is not an unprimeable number, because it can be changed into a prime (12916251883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293902 + ... + 334978.

It is an arithmetic number, because the mean of its divisors is an integer number (519431310).

Almost surely, 212916251880 is an apocalyptic number.

12916251880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12916251880 is an abundant number, since it is smaller than the sum of its proper divisors (20327351960).

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

12916251880 is a wasteful number, since it uses less digits than its factorization.

12916251880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42218 (or 42214 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 12916251880 in words is "twelve billion, nine hundred sixteen million, two hundred fifty-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 1123 2246 4492 5615 7861 8984 11230 15722 22460 31444 39305 41077 44920 62888 78610 82154 157220 164308 205385 287539 314440 328616 410770 575078 821540 1150156 1437695 1643080 2300312 2875390 5750780 11501560 46129471 92258942 184517884 230647355 322906297 369035768 461294710 645812594 922589420 1291625188 1614531485 1845178840 2583250376 3229062970 6458125940 12916251880