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23287086 = 2322356249
BaseRepresentation
bin101100011010…
…1010100101110
31121211002212200
41120311110232
521430141321
62151042330
7401636244
oct130652456
947732780
1023287086
1112165a29
1279703a6
134a94654
143142794
15209ed26
hex163552e

23287086 has 24 divisors (see below), whose sum is σ = 52650000. Its totient is φ = 7424736.

The previous prime is 23287079. The next prime is 23287111. The reversal of 23287086 is 68078232.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23287086.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27711 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (2193750).

Almost surely, 223287086 is an apocalyptic number.

23287086 is an abundant number, since it is smaller than the sum of its proper divisors (29362914).

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

23287086 is a wasteful number, since it uses less digits than its factorization.

23287086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56280 (or 56277 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 23287086 is about 4825.6694872318. The cubic root of 23287086 is about 285.5650470371.

The spelling of 23287086 in words is "twenty-three million, two hundred eighty-seven thousand, eighty-six".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 56249 112498 168747 337494 506241 1012482 1293727 2587454 3881181 7762362 11643543 23287086