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23253408 = 2532263307
BaseRepresentation
bin101100010110…
…1000110100000
31121202101200100
41120231012200
521423102113
62150222400
7401436123
oct130550640
947671610
1023253408
11121426a2
127954a00
134a82219
1431343ba
152094d73
hex162d1a0

23253408 has 72 divisors (see below), whose sum is σ = 66594528. Its totient is φ = 7696512.

The previous prime is 23253371. The next prime is 23253409. The reversal of 23253408 is 80435232.

23253408 is a `hidden beast` number, since 2 + 3 + 253 + 408 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×232534082 = 1081441967228928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23253409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75591 + ... + 75897.

It is an arithmetic number, because the mean of its divisors is an integer number (924924).

Almost surely, 223253408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23253408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33297264).

23253408 is an abundant number, since it is smaller than the sum of its proper divisors (43341120).

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

23253408 is a wasteful number, since it uses less digits than its factorization.

23253408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 23253408 is about 4822.1787606848. The cubic root of 23253408 is about 285.4273183467.

The spelling of 23253408 in words is "twenty-three million, two hundred fifty-three thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 263 288 307 526 614 789 921 1052 1228 1578 1842 2104 2367 2456 2763 3156 3684 4208 4734 4912 5526 6312 7368 8416 9468 9824 11052 12624 14736 18936 22104 25248 29472 37872 44208 75744 80741 88416 161482 242223 322964 484446 645928 726669 968892 1291856 1453338 1937784 2583712 2906676 3875568 5813352 7751136 11626704 23253408