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12908057 is a prime number
BaseRepresentation
bin110001001111…
…011000011001
3220021210112012
4301033120121
511301024212
61140355305
7214500551
oct61173031
926253465
1012908057
117317018
1243a5b35
13289c406
141a00161
1511ee922
hexc4f619

12908057 has 2 divisors, whose sum is σ = 12908058. Its totient is φ = 12908056.

The previous prime is 12908039. The next prime is 12908099. The reversal of 12908057 is 75080921.

12908057 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., 12845056 + 63001 = 3584^2 + 251^2 .

It is an emirp because it is prime and its reverse (75080921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12908057 - 28 = 12907801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12998057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454028 + 6454029.

It is an arithmetic number, because the mean of its divisors is an integer number (6454029).

Almost surely, 212908057 is an apocalyptic number.

It is an amenable number.

12908057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12908057 is an equidigital number, since it uses as much as digits as its factorization.

12908057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 12908057 is about 3592.7784512825. The cubic root of 12908057 is about 234.5778266053.

Adding to 12908057 its reverse (75080921), we get a palindrome (87988978).

The spelling of 12908057 in words is "twelve million, nine hundred eight thousand, fifty-seven".