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23057824 = 254715331
BaseRepresentation
bin101011111110…
…1010110100000
31121101110101111
41113331112200
521400322244
62142113104
7366662656
oct127752640
947343344
1023057824
1112019759
12787b794
134a141aa
1430c2dd6
152056e34
hex15fd5a0

23057824 has 24 divisors (see below), whose sum is σ = 46363968. Its totient is φ = 11282880.

The previous prime is 23057821. The next prime is 23057921. The reversal of 23057824 is 42875032.

It is a super-2 number, since 2×230578242 = 1063326495229952, which contains 22 as substring.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (23057821) 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, 6162 + ... + 9169.

It is an arithmetic number, because the mean of its divisors is an integer number (1931832).

Almost surely, 223057824 is an apocalyptic number.

It is an amenable number.

23057824 is an abundant number, since it is smaller than the sum of its proper divisors (23306144).

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

23057824 is a wasteful number, since it uses less digits than its factorization.

23057824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15388 (or 15380 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 23057824 is about 4801.8563077210. The cubic root of 23057824 is about 284.6248228370.

The spelling of 23057824 in words is "twenty-three million, fifty-seven thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 32 47 94 188 376 752 1504 15331 30662 61324 122648 245296 490592 720557 1441114 2882228 5764456 11528912 23057824