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12897383 is a prime number
BaseRepresentation
bin110001001100…
…110001100111
3220021020212212
4301030301213
511300204013
61140234035
7214424462
oct61146147
926236785
1012897383
117309aa4
12439b91b
1328975b5
1419da2d9
1511eb6a8
hexc4cc67

12897383 has 2 divisors, whose sum is σ = 12897384. Its totient is φ = 12897382.

The previous prime is 12897361. The next prime is 12897427. The reversal of 12897383 is 38379821.

12897383 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 is a cyclic number.

It is not a de Polignac number, because 12897383 - 214 = 12880999 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12897383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12897583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6448691 + 6448692.

It is an arithmetic number, because the mean of its divisors is an integer number (6448692).

Almost surely, 212897383 is an apocalyptic number.

12897383 is a deficient number, since it is larger than the sum of its proper divisors (1).

12897383 is an equidigital number, since it uses as much as digits as its factorization.

12897383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 12897383 is about 3591.2926642088. The cubic root of 12897383 is about 234.5131493211.

The spelling of 12897383 in words is "twelve million, eight hundred ninety-seven thousand, three hundred eighty-three".