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86317541127808 = 278943997172217
BaseRepresentation
bin10011101000000101011110…
…011000000111011010000000
3102022121212122212001012222121
4103220011132120013122000
542303211311012042213
6503325421520014024
724116144064515404
oct2350053630073200
9368555585035877
1086317541127808
112555a077744831
129820b01a61314
13392192b169083
141745b113c5104
159ea4b5ee688d
hex4e815e607680

86317541127808 has 64 divisors (see below), whose sum is σ = 173897831593800. Its totient is φ = 42672622845952.

The previous prime is 86317541127793. The next prime is 86317541127817. The reversal of 86317541127808 is 80872114571368.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24555672015424 + 61761869112384 = 4955368^2 + 7858872^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501127716 + ... + 501299932.

Almost surely, 286317541127808 is an apocalyptic number.

It is an amenable number.

86317541127808 is an abundant number, since it is smaller than the sum of its proper divisors (87580290465992).

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

86317541127808 is a wasteful number, since it uses less digits than its factorization.

86317541127808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216317 (or 216305 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 86317541127808 in words is "eighty-six trillion, three hundred seventeen billion, five hundred forty-one million, one hundred twenty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 64 89 128 178 356 712 1424 2848 5696 11392 43997 87994 172217 175988 344434 351976 688868 703952 1377736 1407904 2755472 2815808 3915733 5510944 5631616 7831466 11021888 15327313 15662932 22043776 30654626 31325864 61309252 62651728 122618504 125303456 245237008 250606912 490474016 501213824 980948032 1961896064 7577031349 15154062698 30308125396 60616250792 121232501584 242465003168 484930006336 674355790061 969860012672 1348711580122 2697423160244 5394846320488 10789692640976 21579385281952 43158770563904 86317541127808