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12808951 is a prime number
BaseRepresentation
bin110000110111…
…001011110111
3220002202120121
4300313023313
511234341301
61134312411
7213605611
oct60671367
926082517
1012808951
117259611
124358707
13286627c
1419b5db1
1511d03a1
hexc372f7

12808951 has 2 divisors, whose sum is σ = 12808952. Its totient is φ = 12808950.

The previous prime is 12808949. The next prime is 12808979. The reversal of 12808951 is 15980821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12808951 - 21 = 12808949 is a prime.

Together with 12808949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12808151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404475 + 6404476.

It is an arithmetic number, because the mean of its divisors is an integer number (6404476).

Almost surely, 212808951 is an apocalyptic number.

12808951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12808951 is an equidigital number, since it uses as much as digits as its factorization.

12808951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 12808951 is about 3578.9594856606. The cubic root of 12808951 is about 233.9759331909.

The spelling of 12808951 in words is "twelve million, eight hundred eight thousand, nine hundred fifty-one".