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12998057 is a prime number
BaseRepresentation
bin110001100101…
…010110101001
3220110100222112
4301211112221
511311414212
61142332105
7215324132
oct61452651
926410875
1012998057
1173786a6
12442a035
132901377
141a24c89
15121b422
hexc655a9

12998057 has 2 divisors, whose sum is σ = 12998058. Its totient is φ = 12998056.

The previous prime is 12998053. The next prime is 12998077. The reversal of 12998057 is 75089921.

12998057 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., 12752041 + 246016 = 3571^2 + 496^2 .

It is an emirp because it is prime and its reverse (75089921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12998057 - 22 = 12998053 is a prime.

It is not a weakly prime, because it can be changed into another prime (12998053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6499028 + 6499029.

It is an arithmetic number, because the mean of its divisors is an integer number (6499029).

Almost surely, 212998057 is an apocalyptic number.

It is an amenable number.

12998057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12998057 is an equidigital number, since it uses as much as digits as its factorization.

12998057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 12998057 is about 3605.2818197750. The cubic root of 12998057 is about 235.1217537184.

The spelling of 12998057 in words is "twelve million, nine hundred ninety-eight thousand, fifty-seven".