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12390568 = 232276823
BaseRepresentation
bin101111010001…
…000010101000
3212022111122221
4233101002220
511132444233
61121323424
7210214051
oct57210250
925274587
1012390568
116aa3243
124196574
13274a9c8
141907728
15114b42d
hexbd10a8

12390568 has 16 divisors (see below), whose sum is σ = 23338080. Its totient is φ = 6167088.

The previous prime is 12390557. The next prime is 12390571. The reversal of 12390568 is 86509321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596 + ... + 5227.

It is an arithmetic number, because the mean of its divisors is an integer number (1458630).

Almost surely, 212390568 is an apocalyptic number.

It is an amenable number.

12390568 is a deficient number, since it is larger than the sum of its proper divisors (10947512).

12390568 is a wasteful number, since it uses less digits than its factorization.

12390568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7052 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12390568 is about 3520.0238635555. The cubic root of 12390568 is about 231.4002045344.

Adding to 12390568 its reverse (86509321), we get a palindrome (98899889).

The spelling of 12390568 in words is "twelve million, three hundred ninety thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 227 454 908 1816 6823 13646 27292 54584 1548821 3097642 6195284 12390568