Base | Representation |
---|---|
bin | 110001000111… |
… | …100111111111 |
3 | 220020011221112 |
4 | 301013213333 |
5 | 11244020122 |
6 | 1135552235 |
7 | 214306124 |
oct | 61074777 |
9 | 26204845 |
10 | 12876287 |
11 | 72a5166 |
12 | 438b67b |
13 | 288ab08 |
14 | 19d274b |
15 | 11e52e2 |
hex | c479ff |
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".
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