Base | Representation |
---|---|
bin | 10111100001110001… |
… | …11100000010100011 |
3 | 1012121022012012220212 |
4 | 23300320330002203 |
5 | 201332114024134 |
6 | 5445222324335 |
7 | 625006030652 |
oct | 136070740243 |
9 | 35538165825 |
10 | 12631392419 |
11 | 53a2101098 |
12 | 25462896ab |
13 | 1263c020c9 |
14 | 87b817199 |
15 | 4ddddebce |
hex | 2f0e3c0a3 |
12631392419 has 2 divisors, whose sum is σ = 12631392420. Its totient is φ = 12631392418.
The previous prime is 12631392359. The next prime is 12631392443. The reversal of 12631392419 is 91429313621.
It is a strong prime.
It is an emirp because it is prime and its reverse (91429313621) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12631392419 is a prime.
It is a super-3 number, since 3×126313924193 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not a weakly prime, because it can be changed into another prime (12631392469) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315696209 + 6315696210.
It is an arithmetic number, because the mean of its divisors is an integer number (6315696210).
Almost surely, 212631392419 is an apocalyptic number.
12631392419 is a deficient number, since it is larger than the sum of its proper divisors (1).
12631392419 is an equidigital number, since it uses as much as digits as its factorization.
12631392419 is an evil number, because the sum of its binary digits is even.
The product of its digits is 69984, while the sum is 41.
The spelling of 12631392419 in words is "twelve billion, six hundred thirty-one million, three hundred ninety-two thousand, four hundred nineteen".
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