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23268915 = 325517087
BaseRepresentation
bin101100011000…
…0111000110011
31121210011221200
41120300320303
521424101130
62150422243
7401532255
oct130607063
947704850
1023268915
111215330a
127961983
134a892b7
143139cd5
152099760
hex1630e33

23268915 has 12 divisors (see below), whose sum is σ = 40332864. Its totient is φ = 12410064.

The previous prime is 23268913. The next prime is 23268929. The reversal of 23268915 is 51986232.

It is not a de Polignac number, because 23268915 - 21 = 23268913 is a prime.

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 23268915.

It is not an unprimeable number, because it can be changed into a prime (23268911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258499 + ... + 258588.

It is an arithmetic number, because the mean of its divisors is an integer number (3361072).

Almost surely, 223268915 is an apocalyptic number.

23268915 is a deficient number, since it is larger than the sum of its proper divisors (17063949).

23268915 is a wasteful number, since it uses less digits than its factorization.

23268915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517098 (or 517095 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 23268915 is about 4823.7863758670. The cubic root of 23268915 is about 285.4907518860.

The spelling of 23268915 in words is "twenty-three million, two hundred sixty-eight thousand, nine hundred fifteen".

Divisors: 1 3 5 9 15 45 517087 1551261 2585435 4653783 7756305 23268915