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12685315 = 517149239
BaseRepresentation
bin110000011001…
…000000000011
3212212110222111
4300121000003
511221412230
61131520151
7212552266
oct60310003
925773874
1012685315
117184735
1242b9057
132821c06
141982cdd
1511a892a
hexc19003

12685315 has 8 divisors (see below), whose sum is σ = 16117920. Its totient is φ = 9551232.

The previous prime is 12685313. The next prime is 12685319. The reversal of 12685315 is 51358621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12685315 - 21 = 12685313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12685313) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74535 + ... + 74704.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 212685315 is an apocalyptic number.

12685315 is a deficient number, since it is larger than the sum of its proper divisors (3432605).

12685315 is a wasteful number, since it uses less digits than its factorization.

12685315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149261.

The product of its digits is 7200, while the sum is 31.

The square root of 12685315 is about 3561.6449851157. The cubic root of 12685315 is about 233.2206950674.

The spelling of 12685315 in words is "twelve million, six hundred eighty-five thousand, three hundred fifteen".

Divisors: 1 5 17 85 149239 746195 2537063 12685315