Base | Representation |
---|---|
bin | 10111111001100100… |
… | …11101010100001001 |
3 | 1020010012211100212222 |
4 | 23330302131110021 |
5 | 202234220122142 |
6 | 5521113143425 |
7 | 632651605304 |
oct | 137462352411 |
9 | 36105740788 |
10 | 12831020297 |
11 | 549485a507 |
12 | 25a10bab75 |
13 | 1296388c04 |
14 | 89a13db3b |
15 | 5016c3bd2 |
hex | 2fcc9d509 |
12831020297 has 2 divisors, whose sum is σ = 12831020298. Its totient is φ = 12831020296.
The previous prime is 12831020291. The next prime is 12831020309. The reversal of 12831020297 is 79202013821.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8067812041 + 4763208256 = 89821^2 + 69016^2 .
It is a cyclic number.
It is not a de Polignac number, because 12831020297 - 222 = 12826825993 is a prime.
It is not a weakly prime, because it can be changed into another prime (12831020291) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415510148 + 6415510149.
It is an arithmetic number, because the mean of its divisors is an integer number (6415510149).
Almost surely, 212831020297 is an apocalyptic number.
It is an amenable number.
12831020297 is a deficient number, since it is larger than the sum of its proper divisors (1).
12831020297 is an equidigital number, since it uses as much as digits as its factorization.
12831020297 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 35.
The spelling of 12831020297 in words is "twelve billion, eight hundred thirty-one million, twenty thousand, two hundred ninety-seven".
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