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12956953 is a prime number
BaseRepresentation
bin110001011011…
…010100011001
3220101021121011
4301123110121
511304110303
61141413521
7215063242
oct61332431
926337534
1012956953
11734a829
12440a2a1
1328b8749
141a13cc9
15120e16d
hexc5b519

12956953 has 2 divisors, whose sum is σ = 12956954. Its totient is φ = 12956952.

The previous prime is 12956947. The next prime is 12957013. The reversal of 12956953 is 35965921.

It is a happy number.

12956953 is digitally balanced in base 2, 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., 12652249 + 304704 = 3557^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 12956953 - 221 = 10859801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12956903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6478476 + 6478477.

It is an arithmetic number, because the mean of its divisors is an integer number (6478477).

Almost surely, 212956953 is an apocalyptic number.

It is an amenable number.

12956953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12956953 is an equidigital number, since it uses as much as digits as its factorization.

12956953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 40.

The square root of 12956953 is about 3599.5767806785. The cubic root of 12956953 is about 234.8736486913.

The spelling of 12956953 in words is "twelve million, nine hundred fifty-six thousand, nine hundred fifty-three".