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12682015 = 52536403
BaseRepresentation
bin110000011000…
…001100011111
3212212022110021
4300120030133
511221311030
61131453011
7212536543
oct60301437
925768407
1012682015
117182205
1242b7167
132820568
141981a23
1511a797a
hexc1831f

12682015 has 4 divisors (see below), whose sum is σ = 15218424. Its totient is φ = 10145608.

The previous prime is 12682013. The next prime is 12682027. The reversal of 12682015 is 51028621.

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

It is a cyclic number.

It is not a de Polignac number, because 12682015 - 21 = 12682013 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268197 + ... + 1268206.

It is an arithmetic number, because the mean of its divisors is an integer number (3804606).

Almost surely, 212682015 is an apocalyptic number.

12682015 is a deficient number, since it is larger than the sum of its proper divisors (2536409).

12682015 is an equidigital number, since it uses as much as digits as its factorization.

12682015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536408.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12682015 is about 3561.1816859015. The cubic root of 12682015 is about 233.2004697112.

The spelling of 12682015 in words is "twelve million, six hundred eighty-two thousand, fifteen".

Divisors: 1 5 2536403 12682015