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12307957 is a prime number
BaseRepresentation
bin101110111100…
…110111110101
3212011022100021
4232330313311
511122323312
61115445141
7206421154
oct56746765
925138307
1012307957
116a47172
1241567b1
13271c21c
1418c559b
151131c07
hexbbcdf5

12307957 has 2 divisors, whose sum is σ = 12307958. Its totient is φ = 12307956.

The previous prime is 12307927. The next prime is 12307993. The reversal of 12307957 is 75970321.

12307957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 2328676 = 3159^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 12307957 - 215 = 12275189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12307927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6153978 + 6153979.

It is an arithmetic number, because the mean of its divisors is an integer number (6153979).

Almost surely, 212307957 is an apocalyptic number.

It is an amenable number.

12307957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12307957 is an equidigital number, since it uses as much as digits as its factorization.

12307957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 12307957 is about 3508.2698014833. The cubic root of 12307957 is about 230.8847897845.

The spelling of 12307957 in words is "twelve million, three hundred seven thousand, nine hundred fifty-seven".