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23265231 = 31117113367
BaseRepresentation
bin101100010111…
…1111111001111
31121202222220020
41120233333033
521423441411
62150353223
7401515443
oct130577717
947688806
1023265231
1112150570
12795b813
134a87712
143138823
152098606
hex162ffcf

23265231 has 32 divisors (see below), whose sum is σ = 36246528. Its totient is φ = 13117440.

The previous prime is 23265211. The next prime is 23265233. The reversal of 23265231 is 13256232.

It is not a de Polignac number, because 23265231 - 27 = 23265103 is a prime.

It is a super-2 number, since 2×232652312 = 1082541946966722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23265233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63210 + ... + 63576.

It is an arithmetic number, because the mean of its divisors is an integer number (1132704).

Almost surely, 223265231 is an apocalyptic number.

23265231 is a deficient number, since it is larger than the sum of its proper divisors (12981297).

23265231 is a wasteful number, since it uses less digits than its factorization.

23265231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its digits is 2160, while the sum is 24.

The square root of 23265231 is about 4823.4045030455. The cubic root of 23265231 is about 285.4756845248.

It can be divided in two parts, 2326 and 5231, that added together give a palindrome (7557).

The spelling of 23265231 in words is "twenty-three million, two hundred sixty-five thousand, two hundred thirty-one".

Divisors: 1 3 11 17 33 51 113 187 339 367 561 1101 1243 1921 3729 4037 5763 6239 12111 18717 21131 41471 63393 68629 124413 205887 456181 705007 1368543 2115021 7755077 23265231