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12887518316232 = 233776711418549
BaseRepresentation
bin1011101110001001101111…
…1100111000011011001000
31200122000221022100221202210
42323202123330320123020
53142122114142104412
643224235535425120
72500043501146320
oct273423374703310
950560838327683
1012887518316232
11411962512696a
12154182b9851a0
137263982a2ca1
14327a8b3dc280
1517537978083c
hexbb89bf386c8

12887518316232 has 32 divisors (see below), whose sum is σ = 36821480904000. Its totient is φ = 3682148090304.

The previous prime is 12887518316203. The next prime is 12887518316279. The reversal of 12887518316232 is 23261381578821.

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, 38355709107 + ... + 38355709442.

It is an arithmetic number, because the mean of its divisors is an integer number (1150671278250).

Almost surely, 212887518316232 is an apocalyptic number.

12887518316232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12887518316232 is an abundant number, since it is smaller than the sum of its proper divisors (23933962587768).

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

12887518316232 is a wasteful number, since it uses less digits than its factorization.

12887518316232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76711418565 (or 76711418561 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 12887518316232 in words is "twelve trillion, eight hundred eighty-seven billion, five hundred eighteen million, three hundred sixteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 76711418549 153422837098 230134255647 306845674196 460268511294 536979929843 613691348392 920537022588 1073959859686 1610939789529 1841074045176 2147919719372 3221879579058 4295839438744 6443759158116 12887518316232