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12860307 = 321428923
BaseRepresentation
bin110001000011…
…101110010011
3220012101000200
4301003232103
511243012212
61135350243
7214211415
oct61035623
926171020
1012860307
117294159
124382383
132883765
1419ca9b5
1511e06dc
hexc43b93

12860307 has 6 divisors (see below), whose sum is σ = 18576012. Its totient is φ = 8573532.

The previous prime is 12860299. The next prime is 12860317. The reversal of 12860307 is 70306821.

12860307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12860307 - 23 = 12860299 is a prime.

It is a super-2 number, since 2×128603072 = 330774992268498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12860317) 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, 714453 + ... + 714470.

It is an arithmetic number, because the mean of its divisors is an integer number (3096002).

Almost surely, 212860307 is an apocalyptic number.

12860307 is a deficient number, since it is larger than the sum of its proper divisors (5715705).

12860307 is a wasteful number, since it uses less digits than its factorization.

12860307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428929 (or 1428926 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12860307 is about 3586.1270195017. The cubic root of 12860307 is about 234.2882159764.

The spelling of 12860307 in words is "twelve million, eight hundred sixty thousand, three hundred seven".

Divisors: 1 3 9 1428923 4286769 12860307