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23313532 = 22111979353
BaseRepresentation
bin101100011101…
…1110001111100
31121212110011011
41120323301330
521432013112
62151405004
7402106324
oct130736174
947773134
1023313532
1112183890
127983764
134aa36b8
14314c284
1520a7aa7
hex163bc7c

23313532 has 48 divisors (see below), whose sum is σ = 47577600. Its totient is φ = 9884160.

The previous prime is 23313509. The next prime is 23313533. The reversal of 23313532 is 23531332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65868 + ... + 66220.

It is an arithmetic number, because the mean of its divisors is an integer number (991200).

Almost surely, 223313532 is an apocalyptic number.

23313532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23313532 is an abundant number, since it is smaller than the sum of its proper divisors (24264068).

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

23313532 is a wasteful number, since it uses less digits than its factorization.

23313532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its digits is 1620, while the sum is 22.

The square root of 23313532 is about 4828.4088476433. The cubic root of 23313532 is about 285.6731068749.

Adding to 23313532 its reverse (23531332), we get a palindrome (46844864).

The spelling of 23313532 in words is "twenty-three million, three hundred thirteen thousand, five hundred thirty-two".

Divisors: 1 2 4 11 19 22 38 44 76 79 158 209 316 353 418 706 836 869 1412 1501 1738 3002 3476 3883 6004 6707 7766 13414 15532 16511 26828 27887 33022 55774 66044 73777 111548 147554 295108 306757 529853 613514 1059706 1227028 2119412 5828383 11656766 23313532