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23238464 = 262315787
BaseRepresentation
bin101100010100…
…1011101000000
31121201122011212
41120221131000
521422112324
62150025252
7401344424
oct130513500
947648155
1023238464
1112132447
127948228
134a78492
14312cb84
15209070e
hex1629740

23238464 has 28 divisors (see below), whose sum is σ = 48121824. Its totient is φ = 11113344.

The previous prime is 23238461. The next prime is 23238469. The reversal of 23238464 is 46483232.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 23238464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23238461) 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, 6422 + ... + 9365.

Almost surely, 223238464 is an apocalyptic number.

It is an amenable number.

23238464 is an abundant number, since it is smaller than the sum of its proper divisors (24883360).

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

23238464 is a wasteful number, since it uses less digits than its factorization.

23238464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822 (or 15812 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 23238464 is about 4820.6290046010. The cubic root of 23238464 is about 285.3661611476.

The spelling of 23238464 in words is "twenty-three million, two hundred thirty-eight thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 736 1472 15787 31574 63148 126296 252592 363101 505184 726202 1010368 1452404 2904808 5809616 11619232 23238464