Base | Representation |
---|---|
bin | 10111111100101101… |
… | …10110100101011001 |
3 | 1020012001100110021011 |
4 | 23332112312211121 |
5 | 202312434310301 |
6 | 5523453213521 |
7 | 633421400011 |
oct | 137626664531 |
9 | 36161313234 |
10 | 12857338201 |
11 | 54a86a5544 |
12 | 25a9a912a1 |
13 | 129b971c36 |
14 | 89d830c41 |
15 | 503b71a51 |
hex | 2fe5b6959 |
12857338201 has 2 divisors, whose sum is σ = 12857338202. Its totient is φ = 12857338200.
The previous prime is 12857338159. The next prime is 12857338217. The reversal of 12857338201 is 10283375821.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10999814400 + 1857523801 = 104880^2 + 43099^2 .
It is an emirp because it is prime and its reverse (10283375821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12857338201 - 27 = 12857338073 is a prime.
It is a super-2 number, since 2×128573382012 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12857338301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428669100 + 6428669101.
It is an arithmetic number, because the mean of its divisors is an integer number (6428669101).
Almost surely, 212857338201 is an apocalyptic number.
It is an amenable number.
12857338201 is a deficient number, since it is larger than the sum of its proper divisors (1).
12857338201 is an equidigital number, since it uses as much as digits as its factorization.
12857338201 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 80640, while the sum is 40.
The spelling of 12857338201 in words is "twelve billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, two hundred one".
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