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23117568 = 28331971
BaseRepresentation
bin101100000101…
…1111100000000
31121111111100020
41120023330000
521404230233
62143253440
7400332105
oct130137400
947444306
1023117568
111205a631
1278aa280
134a35446
1430daaac
1520699b3
hex160bf00

23117568 has 72 divisors (see below), whose sum is σ = 63576576. Its totient is φ = 7449600.

The previous prime is 23117551. The next prime is 23117573. The reversal of 23117568 is 86571132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23323 + ... + 24293.

It is an arithmetic number, because the mean of its divisors is an integer number (883008).

Almost surely, 223117568 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 23117568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31788288).

23117568 is an abundant number, since it is smaller than the sum of its proper divisors (40459008).

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

23117568 is an equidigital number, since it uses as much as digits as its factorization.

23117568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1007 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 23117568 is about 4808.0732107571. The cubic root of 23117568 is about 284.8704366454.

The spelling of 23117568 in words is "twenty-three million, one hundred seventeen thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 128 186 192 248 256 372 384 496 744 768 971 992 1488 1942 1984 2913 2976 3884 3968 5826 5952 7768 7936 11652 11904 15536 23304 23808 30101 31072 46608 60202 62144 90303 93216 120404 124288 180606 186432 240808 248576 361212 372864 481616 722424 745728 963232 1444848 1926464 2889696 3852928 5779392 7705856 11558784 23117568