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12859407 = 3211129893
BaseRepresentation
bin110001000011…
…100000001111
3220012022210100
4301003200033
511243000112
61135342143
7214205661
oct61034017
926168710
1012859407
117293510
124381953
132883222
1419ca531
1511e02dc
hexc4380f

12859407 has 12 divisors (see below), whose sum is σ = 20263464. Its totient is φ = 7793520.

The previous prime is 12859381. The next prime is 12859411. The reversal of 12859407 is 70495821.

It is not a de Polignac number, because 12859407 - 216 = 12793871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12859417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64848 + ... + 65045.

It is an arithmetic number, because the mean of its divisors is an integer number (1688622).

Almost surely, 212859407 is an apocalyptic number.

12859407 is a deficient number, since it is larger than the sum of its proper divisors (7404057).

12859407 is a wasteful number, since it uses less digits than its factorization.

12859407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129910 (or 129907 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12859407 is about 3586.0015337420. The cubic root of 12859407 is about 234.2827504689.

The spelling of 12859407 in words is "twelve million, eight hundred fifty-nine thousand, four hundred seven".

Divisors: 1 3 9 11 33 99 129893 389679 1169037 1428823 4286469 12859407