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86139551180 = 22525571684387
BaseRepresentation
bin101000000111001010…
…0010011110111001100
322020100012202120220102
41100032110103313030
52402403211114210
6103323313310232
76136422050504
oct1201624236714
9266305676812
1086139551180
1133593592821
121483bb65378
13817a0b1837
144252312a04
1523924beea5
hex140e513dcc

86139551180 has 24 divisors (see below), whose sum is σ = 180963909168. Its totient is φ = 34442324928.

The previous prime is 86139551167. The next prime is 86139551189. The reversal of 86139551180 is 8115593168.

It is not an unprimeable number, because it can be changed into a prime (86139551189) 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 7 ways as a sum of consecutive naturals, for example, 791054 + ... + 893333.

It is an arithmetic number, because the mean of its divisors is an integer number (7540162882).

Almost surely, 286139551180 is an apocalyptic number.

It is an amenable number.

86139551180 is an abundant number, since it is smaller than the sum of its proper divisors (94824357988).

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

86139551180 is a wasteful number, since it uses less digits than its factorization.

86139551180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686953 (or 1686951 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 86139551180 in words is "eighty-six billion, one hundred thirty-nine million, five hundred fifty-one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2557 5114 10228 12785 25570 51140 1684387 3368774 6737548 8421935 16843870 33687740 4306977559 8613955118 17227910236 21534887795 43069775590 86139551180