Base | Representation |
---|---|
bin | 101101110001… |
… | …101111101111 |
3 | 211120200020022 |
4 | 231301233233 |
5 | 11033001424 |
6 | 1105112355 |
7 | 204000056 |
oct | 55615757 |
9 | 24520208 |
10 | 12000239 |
11 | 6856a59 |
12 | 40286bb |
13 | 2642144 |
14 | 184539d |
15 | 10c095e |
hex | b71bef |
12000239 has 2 divisors, whose sum is σ = 12000240. Its totient is φ = 12000238.
The previous prime is 12000133. The next prime is 12000253. The reversal of 12000239 is 93200021.
It is a strong prime.
It is an emirp because it is prime and its reverse (93200021) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12000239 - 212 = 11996143 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12000259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000119 + 6000120.
It is an arithmetic number, because the mean of its divisors is an integer number (6000120).
Almost surely, 212000239 is an apocalyptic number.
12000239 is a deficient number, since it is larger than the sum of its proper divisors (1).
12000239 is an equidigital number, since it uses as much as digits as its factorization.
12000239 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 12000239 is about 3464.1361116446. The cubic root of 12000239 is about 228.9443684267.
The spelling of 12000239 in words is "twelve million, two hundred thirty-nine", and thus it is an aban number.
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