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86780652 = 22373173259
BaseRepresentation
bin1010010110000…
…10101011101100
320001021220200020
411023002223230
5134203440102
612340002140
72102423550
oct513025354
9201256606
1086780652
1144a92652
1225090350
1314c957ca
14b74d860
157942bbc
hex52c2aec

86780652 has 48 divisors (see below), whose sum is σ = 232216320. Its totient is φ = 24708672.

The previous prime is 86780609. The next prime is 86780653. The reversal of 86780652 is 25608768.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (86780653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24999 + ... + 28257.

It is an arithmetic number, because the mean of its divisors is an integer number (4837840).

Almost surely, 286780652 is an apocalyptic number.

It is an amenable number.

86780652 is an abundant number, since it is smaller than the sum of its proper divisors (145435668).

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

86780652 is a wasteful number, since it uses less digits than its factorization.

86780652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590 (or 3588 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 86780652 is about 9315.6133453466. The cubic root of 86780652 is about 442.7320574135.

The spelling of 86780652 in words is "eighty-six million, seven hundred eighty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 317 634 951 1268 1902 2219 3259 3804 4438 6518 6657 8876 9777 13036 13314 19554 22813 26628 39108 45626 68439 91252 136878 273756 1033103 2066206 3099309 4132412 6198618 7231721 12397236 14463442 21695163 28926884 43390326 86780652