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12953389 is a prime number
BaseRepresentation
bin110001011010…
…011100101101
3220101002201011
4301122130231
511304002024
61141345221
7215046661
oct61323455
926332634
1012953389
117348089
124408211
1328b6c37
141a128a1
15120d094
hexc5a72d

12953389 has 2 divisors, whose sum is σ = 12953390. Its totient is φ = 12953388.

The previous prime is 12953387. The next prime is 12953399. The reversal of 12953389 is 98335921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10673289 + 2280100 = 3267^2 + 1510^2 .

It is an emirp because it is prime and its reverse (98335921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12953389 - 21 = 12953387 is a prime.

Together with 12953387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12953387) 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, 6476694 + 6476695.

It is an arithmetic number, because the mean of its divisors is an integer number (6476695).

Almost surely, 212953389 is an apocalyptic number.

It is an amenable number.

12953389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12953389 is an equidigital number, since it uses as much as digits as its factorization.

12953389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 12953389 is about 3599.0816884311. The cubic root of 12953389 is about 234.8521115690.

The spelling of 12953389 in words is "twelve million, nine hundred fifty-three thousand, three hundred eighty-nine".