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12868942 = 27921031
BaseRepresentation
bin110001000101…
…110101001110
3220012210212111
4301011311032
511243301232
61135454234
7214245532
oct61056516
926183774
1012868942
11729a699
12438737a
132887678
1419cdbc2
1511e3047
hexc45d4e

12868942 has 12 divisors (see below), whose sum is σ = 19569816. Its totient is φ = 6346860.

The previous prime is 12868939. The next prime is 12868943. The reversal of 12868942 is 24986821.

12868942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12868895 and 12868904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11967 + ... + 12997.

It is an arithmetic number, because the mean of its divisors is an integer number (1630818).

Almost surely, 212868942 is an apocalyptic number.

12868942 is a deficient number, since it is larger than the sum of its proper divisors (6700874).

12868942 is an equidigital number, since it uses as much as digits as its factorization.

12868942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1112 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 12868942 is about 3587.3307625587. The cubic root of 12868942 is about 234.3406415294.

The spelling of 12868942 in words is "twelve million, eight hundred sixty-eight thousand, nine hundred forty-two".

Divisors: 1 2 79 158 1031 2062 6241 12482 81449 162898 6434471 12868942