Base | Representation |
---|---|
bin | 10111010101110000… |
… | …10001010010011101 |
3 | 1012100021110002122002 |
4 | 23222320101102131 |
5 | 201130310212023 |
6 | 5431221132045 |
7 | 622342644305 |
oct | 135270212235 |
9 | 35307402562 |
10 | 12530554013 |
11 | 535019776a |
12 | 251855a025 |
13 | 1249056b03 |
14 | 86c288605 |
15 | 4d5121b28 |
hex | 2eae1149d |
12530554013 has 2 divisors, whose sum is σ = 12530554014. Its totient is φ = 12530554012.
The previous prime is 12530554009. The next prime is 12530554027. The reversal of 12530554013 is 31045503521.
12530554013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12520043449 + 10510564 = 111893^2 + 3242^2 .
It is an emirp because it is prime and its reverse (31045503521) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12530554013 - 22 = 12530554009 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12530554063) 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, 6265277006 + 6265277007.
It is an arithmetic number, because the mean of its divisors is an integer number (6265277007).
Almost surely, 212530554013 is an apocalyptic number.
It is an amenable number.
12530554013 is a deficient number, since it is larger than the sum of its proper divisors (1).
12530554013 is an equidigital number, since it uses as much as digits as its factorization.
12530554013 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9000, while the sum is 29.
The spelling of 12530554013 in words is "twelve billion, five hundred thirty million, five hundred fifty-four thousand, thirteen".
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