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138801078405012 = 223891078731204783
BaseRepresentation
bin11111100011110100100100…
…111110010000011110010100
3200012110020211210202002012010
4133203310210332100132110
5121143104102032430022
61211112200220224220
741144022054625002
oct3743644476203624
9605406753662163
10138801078405012
114025423024a871
12136986b439b070
135c5ab6868528a
14263c0180bda72
15110a80431d50c
hex7e3d24f90794

138801078405012 has 48 divisors (see below), whose sum is σ = 327511470424320. Its totient is φ = 45746709854208.

The previous prime is 138801078404977. The next prime is 138801078405023. The reversal of 138801078405012 is 210504870108831.

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, 114605973 + ... + 115810755.

It is an arithmetic number, because the mean of its divisors is an integer number (6823155633840).

Almost surely, 2138801078405012 is an apocalyptic number.

138801078405012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138801078405012 is an abundant number, since it is smaller than the sum of its proper divisors (188710392019308).

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

138801078405012 is a wasteful number, since it uses less digits than its factorization.

138801078405012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312752 (or 1312750 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 138801078405012 in words is "one hundred thirty-eight trillion, eight hundred one billion, seventy-eight million, four hundred five thousand, twelve".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 107873 215746 323619 431492 647238 1204783 1294476 2409566 3614349 4819132 7228698 9600697 14457396 19201394 28802091 38402788 57604182 107225687 115208364 214451374 321677061 428902748 643354122 1286708244 129963556559 259927113118 389890669677 519854226236 779781339354 1559562678708 11566756533751 23133513067502 34700269601253 46267026135004 69400539202506 138801078405012