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86668384 = 2511246217
BaseRepresentation
bin1010010101001…
…11010001100000
320001002012200011
411022213101200
5134141342014
612333334304
72101445335
oct512472140
9201065604
1086668384
1144a16270
1225037394
1314c5668a
14b72098c
15791e7c4
hex52a7460

86668384 has 24 divisors (see below), whose sum is σ = 186140808. Its totient is φ = 39394560.

The previous prime is 86668369. The next prime is 86668391. The reversal of 86668384 is 48386668.

It is a super-2 number, since 2×866683842 = 15022817570342912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 122757 + ... + 123460.

It is an arithmetic number, because the mean of its divisors is an integer number (7755867).

Almost surely, 286668384 is an apocalyptic number.

It is an amenable number.

86668384 is an abundant number, since it is smaller than the sum of its proper divisors (99472424).

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

86668384 is a wasteful number, since it uses less digits than its factorization.

86668384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246238 (or 246230 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The square root of 86668384 is about 9309.5855976515. The cubic root of 86668384 is about 442.5410544224.

The spelling of 86668384 in words is "eighty-six million, six hundred sixty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 246217 492434 984868 1969736 2708387 3939472 5416774 7878944 10833548 21667096 43334192 86668384