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86531083158 = 23131109372861
BaseRepresentation
bin101000010010110100…
…1111000101110010110
322021100111111110210210
41100211221320232112
52404203424130113
6103430221230250
76152215033242
oct1204551705626
9267314443723
1086531083158
11337745a4573
121492b102386
138210249970
14428c311422
1523b6a5e6c3
hex1425a78b96

86531083158 has 16 divisors (see below), whose sum is σ = 186374640816. Its totient is φ = 26624948640.

The previous prime is 86531083157. The next prime is 86531083213. The reversal of 86531083158 is 85138013568.

It is a super-2 number, since 2×865310831582 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86531083157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554686353 + ... + 554686508.

It is an arithmetic number, because the mean of its divisors is an integer number (11648415051).

Almost surely, 286531083158 is an apocalyptic number.

86531083158 is an abundant number, since it is smaller than the sum of its proper divisors (99843557658).

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

86531083158 is a wasteful number, since it uses less digits than its factorization.

86531083158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109372879.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 86531083158 in words is "eighty-six billion, five hundred thirty-one million, eighty-three thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 13 26 39 78 1109372861 2218745722 3328118583 6656237166 14421847193 28843694386 43265541579 86531083158