Base | Representation |
---|---|
bin | 10110010111100111… |
… | …10010011010100111 |
3 | 1010222221120220100222 |
4 | 23023303302122213 |
5 | 144043334112122 |
6 | 5303400354555 |
7 | 603413145356 |
oct | 131363623247 |
9 | 33887526328 |
10 | 12009285287 |
11 | 5102a2386a |
12 | 23b1a75a5b |
13 | 1195065c8c |
14 | 81cd5799d |
15 | 4a44a6b42 |
hex | 2cbcf26a7 |
12009285287 has 2 divisors, whose sum is σ = 12009285288. Its totient is φ = 12009285286.
The previous prime is 12009285257. The next prime is 12009285307. The reversal of 12009285287 is 78258290021.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12009285287 - 212 = 12009281191 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12009285257) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004642643 + 6004642644.
It is an arithmetic number, because the mean of its divisors is an integer number (6004642644).
Almost surely, 212009285287 is an apocalyptic number.
12009285287 is a deficient number, since it is larger than the sum of its proper divisors (1).
12009285287 is an equidigital number, since it uses as much as digits as its factorization.
12009285287 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 161280, while the sum is 44.
It can be divided in two parts, 120092 and 85287, that added together give a cube (205379 = 593).
The spelling of 12009285287 in words is "twelve billion, nine million, two hundred eighty-five thousand, two hundred eighty-seven".
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