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12860 = 225643
BaseRepresentation
bin11001000111100
3122122022
43020330
5402420
6135312
752331
oct31074
918568
1012860
119731
127538
135b13
144988
153c25
hex323c

12860 has 12 divisors (see below), whose sum is σ = 27048. Its totient is φ = 5136.

The previous prime is 12853. The next prime is 12889. The reversal of 12860 is 6821.

12860 = T20 + T21 + ... + T43.

12860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (2254).

212860 is an apocalyptic number.

12860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12860 is an abundant number, since it is smaller than the sum of its proper divisors (14188).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13524).

12860 is a wasteful number, since it uses less digits than its factorization.

12860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12860 is about 113.4019400187. The cubic root of 12860 is about 23.4286351660.

The spelling of 12860 in words is "twelve thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 643 1286 2572 3215 6430 12860