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23144912 = 247206651
BaseRepresentation
bin101100001001…
…0100111010000
31121112212211222
41120102213100
521411114122
62144024212
7400504610
oct130224720
947485758
1023144912
111207912a
127902068
134a44a1b
143106a40
152072b42
hex16129d0

23144912 has 20 divisors (see below), whose sum is σ = 51249696. Its totient is φ = 9919200.

The previous prime is 23144911. The next prime is 23144921. The reversal of 23144912 is 21944132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23144911) 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, 103214 + ... + 103437.

Almost surely, 223144912 is an apocalyptic number.

It is an amenable number.

23144912 is an abundant number, since it is smaller than the sum of its proper divisors (28104784).

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

23144912 is a wasteful number, since it uses less digits than its factorization.

23144912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206666 (or 206660 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 23144912 is about 4810.9159211111. The cubic root of 23144912 is about 284.9827095287.

The spelling of 23144912 in words is "twenty-three million, one hundred forty-four thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 112 206651 413302 826604 1446557 1653208 2893114 3306416 5786228 11572456 23144912