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12880787 is a prime number
BaseRepresentation
bin110001001000…
…101110010011
3220020102010012
4301020232103
511244141122
61140025135
7214325213
oct61105623
926212105
1012880787
1172a8587
1243921ab
13288cb8a
1419d4243
1511e67e2
hexc48b93

12880787 has 2 divisors, whose sum is σ = 12880788. Its totient is φ = 12880786.

The previous prime is 12880783. The next prime is 12880793. The reversal of 12880787 is 78708821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12880787 - 22 = 12880783 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12880783) 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, 6440393 + 6440394.

It is an arithmetic number, because the mean of its divisors is an integer number (6440394).

Almost surely, 212880787 is an apocalyptic number.

12880787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880787 is an equidigital number, since it uses as much as digits as its factorization.

12880787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 12880787 is about 3588.9813317988. The cubic root of 12880787 is about 234.4125177747.

The spelling of 12880787 in words is "twelve million, eight hundred eighty thousand, seven hundred eighty-seven".