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12698297 is a prime number
BaseRepresentation
bin110000011100…
…001010111001
3212220010210022
4300130022321
511222321142
61132100225
7212635163
oct60341271
925803708
1012698297
117193467
124304675
132827ab1
141987933
1511ac6d2
hexc1c2b9

12698297 has 2 divisors, whose sum is σ = 12698298. Its totient is φ = 12698296.

The previous prime is 12698293. The next prime is 12698299. The reversal of 12698297 is 79289621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 5812921 = 2624^2 + 2411^2 .

It is an emirp because it is prime and its reverse (79289621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12698297 - 22 = 12698293 is a prime.

It is a super-2 number, since 2×126982972 = 322493493400418, which contains 22 as substring.

Together with 12698299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12698291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349148 + 6349149.

It is an arithmetic number, because the mean of its divisors is an integer number (6349149).

Almost surely, 212698297 is an apocalyptic number.

It is an amenable number.

12698297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12698297 is an equidigital number, since it uses as much as digits as its factorization.

12698297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 12698297 is about 3563.4669915687. The cubic root of 12698297 is about 233.3002263685.

The spelling of 12698297 in words is "twelve million, six hundred ninety-eight thousand, two hundred ninety-seven".