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12983879 is a prime number
BaseRepresentation
bin110001100001…
…111001000111
3220102122112102
4301201321013
511310441004
61142142315
7215234606
oct61417107
926378472
1012983879
117368a87
12442199b
1328c7a8c
141a1da3d
15121711e
hexc61e47

12983879 has 2 divisors, whose sum is σ = 12983880. Its totient is φ = 12983878.

The previous prime is 12983857. The next prime is 12983899. The reversal of 12983879 is 97838921.

12983879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (97838921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12983879 - 28 = 12983623 is a prime.

It is a super-2 number, since 2×129838792 = 337162227773282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12983819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6491939 + 6491940.

It is an arithmetic number, because the mean of its divisors is an integer number (6491940).

Almost surely, 212983879 is an apocalyptic number.

12983879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12983879 is an equidigital number, since it uses as much as digits as its factorization.

12983879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 12983879 is about 3603.3150014952. The cubic root of 12983879 is about 235.0362340387.

The spelling of 12983879 in words is "twelve million, nine hundred eighty-three thousand, eight hundred seventy-nine".