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23133868 = 2219304393
BaseRepresentation
bin101100000111…
…1111010101100
31121112022200221
41120033322230
521410240433
62143501124
7400430452
oct130177254
947468627
1023133868
11120708aa
1278b77a4
134a3c9a4
1431029d2
15206e72d
hex160feac

23133868 has 12 divisors (see below), whose sum is σ = 42615160. Its totient is φ = 10958112.

The previous prime is 23133863. The next prime is 23133899. The reversal of 23133868 is 86833132.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23133863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152121 + ... + 152272.

Almost surely, 223133868 is an apocalyptic number.

It is an amenable number.

23133868 is a deficient number, since it is larger than the sum of its proper divisors (19481292).

23133868 is a wasteful number, since it uses less digits than its factorization.

23133868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304416 (or 304414 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 23133868 is about 4809.7679777719. The cubic root of 23133868 is about 284.9373741538.

The spelling of 23133868 in words is "twenty-three million, one hundred thirty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 4 19 38 76 304393 608786 1217572 5783467 11566934 23133868