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23231214 = 2321731279
BaseRepresentation
bin101100010011…
…1101011101110
31121201021020100
41120213223232
521421344324
62145531530
7401314326
oct130475356
947637210
1023231214
1112127a56
127943ba6
134a750a6
14312a286
15208d4c9
hex1627aee

23231214 has 72 divisors (see below), whose sum is σ = 55766880. Its totient is φ = 6963840.

The previous prime is 23231213. The next prime is 23231237. The reversal of 23231214 is 41213232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231213) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 294027 + ... + 294105.

It is an arithmetic number, because the mean of its divisors is an integer number (774540).

Almost surely, 223231214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23231214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27883440).

23231214 is an abundant number, since it is smaller than the sum of its proper divisors (32535666).

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

23231214 is a wasteful number, since it uses less digits than its factorization.

23231214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 132 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 23231214 is about 4819.8769693842. The cubic root of 23231214 is about 285.3364816206.

Adding to 23231214 its reverse (41213232), we get a palindrome (64444446).

The spelling of 23231214 in words is "twenty-three million, two hundred thirty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 17 18 31 34 51 62 79 93 102 153 158 186 237 279 306 474 527 558 711 961 1054 1343 1422 1581 1922 2449 2686 2883 3162 4029 4743 4898 5766 7347 8058 8649 9486 12087 14694 16337 17298 22041 24174 32674 41633 44082 49011 75919 83266 98022 124899 147033 151838 227757 249798 294066 374697 455514 683271 749394 1290623 1366542 2581246 3871869 7743738 11615607 23231214