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86866884 = 22331361871
BaseRepresentation
bin1010010110101…
…11101111000100
320001110021222000
411023113233010
5134214220014
612341505300
72103233136
oct513275704
9201407860
1086866884
1145041415
1225112230
1314cc5b30
14b773056
15795d509
hex52d7bc4

86866884 has 48 divisors (see below), whose sum is σ = 242538240. Its totient is φ = 26727840.

The previous prime is 86866877. The next prime is 86866909. The reversal of 86866884 is 48866868.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 86866884.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29532 + ... + 32339.

It is an arithmetic number, because the mean of its divisors is an integer number (5052880).

Almost surely, 286866884 is an apocalyptic number.

It is an amenable number.

86866884 is an abundant number, since it is smaller than the sum of its proper divisors (155671356).

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

86866884 is a wasteful number, since it uses less digits than its factorization.

86866884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61897 (or 61889 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The square root of 86866884 is about 9320.2405548355. The cubic root of 86866884 is about 442.8786531943.

The spelling of 86866884 in words is "eighty-six million, eight hundred sixty-six thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 61871 123742 185613 247484 371226 556839 742452 804323 1113678 1608646 1670517 2227356 2412969 3217292 3341034 4825938 6682068 7238907 9651876 14477814 21716721 28955628 43433442 86866884