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12868888 = 231608611
BaseRepresentation
bin110001000101…
…110100011000
3220012210210111
4301011310120
511243301023
61135454104
7214245424
oct61056430
926183714
1012868888
11729a64a
124387334
132887636
1419cdb84
1511e300d
hexc45d18

12868888 has 8 divisors (see below), whose sum is σ = 24129180. Its totient is φ = 6434440.

The previous prime is 12868883. The next prime is 12868897. The reversal of 12868888 is 88886821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804298 + ... + 804313.

Almost surely, 212868888 is an apocalyptic number.

It is an amenable number.

12868888 is a deficient number, since it is larger than the sum of its proper divisors (11260292).

12868888 is a wasteful number, since it uses less digits than its factorization.

12868888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608617 (or 1608613 counting only the distinct ones).

The product of its digits is 393216, while the sum is 49.

The square root of 12868888 is about 3587.3232360633. The cubic root of 12868888 is about 234.3403137528.

The spelling of 12868888 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 1608611 3217222 6434444 12868888