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12827687 = 108711801
BaseRepresentation
bin110000111011…
…110000100111
3220010201021112
4300323300213
511240441222
61134535235
7214014335
oct60736047
926121245
1012827687
1172716a4
12436751b
132871962
1419bcb55
1511d5be2
hexc3bc27

12827687 has 4 divisors (see below), whose sum is σ = 12840576. Its totient is φ = 12814800.

The previous prime is 12827669. The next prime is 12827693. The reversal of 12827687 is 78672821.

12827687 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 is a cyclic number.

It is not a de Polignac number, because 12827687 - 214 = 12811303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12827627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4814 + ... + 6987.

It is an arithmetic number, because the mean of its divisors is an integer number (3210144).

Almost surely, 212827687 is an apocalyptic number.

12827687 is a deficient number, since it is larger than the sum of its proper divisors (12889).

12827687 is a wasteful number, since it uses less digits than its factorization.

12827687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888.

The product of its digits is 75264, while the sum is 41.

The square root of 12827687 is about 3581.5760497301. The cubic root of 12827687 is about 234.0899585939.

The spelling of 12827687 in words is "twelve million, eight hundred twenty-seven thousand, six hundred eighty-seven".

Divisors: 1 1087 11801 12827687