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12885707 is a prime number
BaseRepresentation
bin110001001001…
…111011001011
3220020122212102
4301021323023
511244320312
61140104015
7214345442
oct61117313
926218772
1012885707
11730124a
12439500b
1328921a3
1419d5d59
1511e7ec2
hexc49ecb

12885707 has 2 divisors, whose sum is σ = 12885708. Its totient is φ = 12885706.

The previous prime is 12885703. The next prime is 12885709. The reversal of 12885707 is 70758821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12885707 - 22 = 12885703 is a prime.

Together with 12885709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12885703) 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 as a sum of consecutive naturals, namely, 6442853 + 6442854.

It is an arithmetic number, because the mean of its divisors is an integer number (6442854).

Almost surely, 212885707 is an apocalyptic number.

12885707 is a deficient number, since it is larger than the sum of its proper divisors (1).

12885707 is an equidigital number, since it uses as much as digits as its factorization.

12885707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 12885707 is about 3589.6666976197. Note that the first 4 decimals coincide. The cubic root of 12885707 is about 234.4423597085.

The spelling of 12885707 in words is "twelve million, eight hundred eighty-five thousand, seven hundred seven".