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12860429 = 41313669
BaseRepresentation
bin110001000011…
…110000001101
3220012101012012
4301003300031
511243013204
61135351005
7214211651
oct61036015
926171165
1012860429
11729425a
124382465
13288382a
1419caa61
1511e076e
hexc43c0d

12860429 has 4 divisors (see below), whose sum is σ = 13174140. Its totient is φ = 12546720.

The previous prime is 12860413. The next prime is 12860453. The reversal of 12860429 is 92406821.

12860429 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2036329 + 10824100 = 1427^2 + 3290^2 .

It is a cyclic number.

It is not a de Polignac number, because 12860429 - 24 = 12860413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12860395 and 12860404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156794 + ... + 156875.

It is an arithmetic number, because the mean of its divisors is an integer number (3293535).

Almost surely, 212860429 is an apocalyptic number.

It is an amenable number.

12860429 is a deficient number, since it is larger than the sum of its proper divisors (313711).

12860429 is an equidigital number, since it uses as much as digits as its factorization.

12860429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313710.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 12860429 is about 3586.1440294556. The cubic root of 12860429 is about 234.2889568367.

The spelling of 12860429 in words is "twelve million, eight hundred sixty thousand, four hundred twenty-nine".

Divisors: 1 41 313669 12860429