Base | Representation |
---|---|
bin | 110001000110… |
… | …101100111011 |
3 | 220012222202112 |
4 | 301012230323 |
5 | 11243410012 |
6 | 1135522535 |
7 | 214262114 |
oct | 61065473 |
9 | 26188675 |
10 | 12872507 |
11 | 72a233a |
12 | 438944b |
13 | 288918b |
14 | 19d120b |
15 | 11e4122 |
hex | c46b3b |
12872507 has 2 divisors, whose sum is σ = 12872508. Its totient is φ = 12872506.
The previous prime is 12872473. The next prime is 12872569. The reversal of 12872507 is 70527821.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12872507 - 212 = 12868411 is a prime.
It is not a weakly prime, because it can be changed into another prime (12872597) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436253 + 6436254.
It is an arithmetic number, because the mean of its divisors is an integer number (6436254).
Almost surely, 212872507 is an apocalyptic number.
12872507 is a deficient number, since it is larger than the sum of its proper divisors (1).
12872507 is an equidigital number, since it uses as much as digits as its factorization.
12872507 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7840, while the sum is 32.
The square root of 12872507 is about 3587.8276157029. The cubic root of 12872507 is about 234.3622788236.
The spelling of 12872507 in words is "twelve million, eight hundred seventy-two thousand, five hundred seven".
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