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12868670 = 254131387
BaseRepresentation
bin110001000101…
…110000111110
3220012210111102
4301011300332
511243244140
61135453102
7214244663
oct61056076
926183442
1012868670
11729a471
124387192
1328874c9
1419cda6a
1511e2e15
hexc45c3e

12868670 has 16 divisors (see below), whose sum is σ = 23729328. Its totient is φ = 5021760.

The previous prime is 12868657. The next prime is 12868697. The reversal of 12868670 is 7686821.

12868670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15284 + ... + 16103.

It is an arithmetic number, because the mean of its divisors is an integer number (1483083).

Almost surely, 212868670 is an apocalyptic number.

12868670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12868670 is a deficient number, since it is larger than the sum of its proper divisors (10860658).

12868670 is a wasteful number, since it uses less digits than its factorization.

12868670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31435.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 12868670 is about 3587.2928511623. The cubic root of 12868670 is about 234.3389904974.

The spelling of 12868670 in words is "twelve million, eight hundred sixty-eight thousand, six hundred seventy".

Divisors: 1 2 5 10 41 82 205 410 31387 62774 156935 313870 1286867 2573734 6434335 12868670