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233312013 = 32112356687
BaseRepresentation
bin11011110100000…
…00111100001101
3121021000110220200
431322000330031
5434211441023
635052404113
75532055644
oct1572007415
9537013820
10233312013
1110a775850
1266176639
133944b95c
1422db435b
1515739743
hexde80f0d

233312013 has 12 divisors (see below), whose sum is σ = 367643328. Its totient is φ = 141401160.

The previous prime is 233312011. The next prime is 233312033. The reversal of 233312013 is 310213332.

233312013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 233312013 - 21 = 233312011 is a prime.

It is a super-2 number, since 2×2333120132 = 108868990820224338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233312011) 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, 1178245 + ... + 1178442.

It is an arithmetic number, because the mean of its divisors is an integer number (30636944).

Almost surely, 2233312013 is an apocalyptic number.

It is an amenable number.

233312013 is a deficient number, since it is larger than the sum of its proper divisors (134331315).

233312013 is a wasteful number, since it uses less digits than its factorization.

233312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356704 (or 2356701 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 233312013 is about 15274.5544288532. The cubic root of 233312013 is about 615.6194987028.

Adding to 233312013 its reverse (310213332), we get a palindrome (543525345).

The spelling of 233312013 in words is "two hundred thirty-three million, three hundred twelve thousand, thirteen".

Divisors: 1 3 9 11 33 99 2356687 7070061 21210183 25923557 77770671 233312013