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86015172 = 22317421643
BaseRepresentation
bin1010010000001…
…11110011000100
312222212000122010
411020013303010
5134004441142
612311334220
72063055045
oct510076304
9188760563
1086015172
114460a521
1224981370
1314a88269
14b5d08cc
157840e9c
hex5207cc4

86015172 has 24 divisors (see below), whose sum is σ = 212508576. Its totient is φ = 26985088.

The previous prime is 86015159. The next prime is 86015177. The reversal of 86015172 is 27151068.

It is not an unprimeable number, because it can be changed into a prime (86015177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210618 + ... + 211025.

It is an arithmetic number, because the mean of its divisors is an integer number (8854524).

Almost surely, 286015172 is an apocalyptic number.

It is an amenable number.

86015172 is an abundant number, since it is smaller than the sum of its proper divisors (126493404).

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

86015172 is a wasteful number, since it uses less digits than its factorization.

86015172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421667 (or 421665 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 86015172 is about 9274.4364788379. The cubic root of 86015172 is about 441.4264518045.

The spelling of 86015172 in words is "eighty-six million, fifteen thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 421643 843286 1264929 1686572 2529858 5059716 7167931 14335862 21503793 28671724 43007586 86015172