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12868842 = 237347883
BaseRepresentation
bin110001000101…
…110011101010
3220012210201210
4301011303222
511243300332
61135453550
7214245330
oct61056352
926183653
1012868842
11729a608
1243872b6
1328875cc
1419cdb50
1511e2ecc
hexc45cea

12868842 has 32 divisors (see below), whose sum is σ = 29532672. Its totient is φ = 3662064.

The previous prime is 12868841. The next prime is 12868861. The reversal of 12868842 is 24886821.

12868842 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12868842.

It is not an unprimeable number, because it can be changed into a prime (12868841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14133 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (922896).

Almost surely, 212868842 is an apocalyptic number.

12868842 is an abundant number, since it is smaller than the sum of its proper divisors (16663830).

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

12868842 is a wasteful number, since it uses less digits than its factorization.

12868842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242.

The product of its digits is 49152, while the sum is 39.

The square root of 12868842 is about 3587.3168245919. The cubic root of 12868842 is about 234.3400345350.

The spelling of 12868842 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 347 694 883 1041 1766 2082 2429 2649 4858 5298 6181 7287 12362 14574 18543 37086 306401 612802 919203 1838406 2144807 4289614 6434421 12868842