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12876287 is a prime number
BaseRepresentation
bin110001000111…
…100111111111
3220020011221112
4301013213333
511244020122
61135552235
7214306124
oct61074777
926204845
1012876287
1172a5166
12438b67b
13288ab08
1419d274b
1511e52e2
hexc479ff

12876287 has 2 divisors, whose sum is σ = 12876288. Its totient is φ = 12876286.

The previous prime is 12876277. The next prime is 12876299. The reversal of 12876287 is 78267821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12876287 - 24 = 12876271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12876257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438143 + 6438144.

It is an arithmetic number, because the mean of its divisors is an integer number (6438144).

Almost surely, 212876287 is an apocalyptic number.

12876287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12876287 is an equidigital number, since it uses as much as digits as its factorization.

12876287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 41.

The square root of 12876287 is about 3588.3543581982. The cubic root of 12876287 is about 234.3852166687.

The spelling of 12876287 in words is "twelve million, eight hundred seventy-six thousand, two hundred eighty-seven".