Base | Representation |
---|---|
bin | 11000010000011111… |
… | …01100000011100111 |
3 | 1020121121111202002111 |
4 | 30020033230003213 |
5 | 203132421412411 |
6 | 5552141021451 |
7 | 640504435042 |
oct | 141017540347 |
9 | 36547452074 |
10 | 13023232231 |
11 | 5583303149 |
12 | 2635554887 |
13 | 12c7147399 |
14 | 8b7895c59 |
15 | 5134e0721 |
hex | 3083ec0e7 |
13023232231 has 2 divisors, whose sum is σ = 13023232232. Its totient is φ = 13023232230.
The previous prime is 13023232219. The next prime is 13023232237. The reversal of 13023232231 is 13223232031.
It is a strong prime.
It is an emirp because it is prime and its reverse (13223232031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13023232231 - 227 = 12889014503 is a prime.
It is a super-2 number, since 2×130232322312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13023232237) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511616115 + 6511616116.
It is an arithmetic number, because the mean of its divisors is an integer number (6511616116).
Almost surely, 213023232231 is an apocalyptic number.
13023232231 is a deficient number, since it is larger than the sum of its proper divisors (1).
13023232231 is an equidigital number, since it uses as much as digits as its factorization.
13023232231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 22.
Adding to 13023232231 its reverse (13223232031), we get a palindrome (26246464262).
The spelling of 13023232231 in words is "thirteen billion, twenty-three million, two hundred thirty-two thousand, two hundred thirty-one".
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