Base | Representation |
---|---|
bin | 11000101010110100… |
… | …10100011000000111 |
3 | 1021012000011010202102 |
4 | 30111122110120013 |
5 | 204110443411011 |
6 | 10030111302315 |
7 | 646126120265 |
oct | 142532243007 |
9 | 37160133672 |
10 | 13244122631 |
11 | 5686a643a3 |
12 | 269751a99b |
13 | 1330b3716c |
14 | 8d8d55435 |
15 | 527ac473b |
hex | 315694607 |
13244122631 has 2 divisors, whose sum is σ = 13244122632. Its totient is φ = 13244122630.
The previous prime is 13244122613. The next prime is 13244122667. The reversal of 13244122631 is 13622144231.
Together with previous prime (13244122613) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13244122631 - 210 = 13244121607 is a prime.
It is a super-2 number, since 2×132441226312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13244122594 and 13244122603.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13244128631) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622061315 + 6622061316.
It is an arithmetic number, because the mean of its divisors is an integer number (6622061316).
Almost surely, 213244122631 is an apocalyptic number.
13244122631 is a deficient number, since it is larger than the sum of its proper divisors (1).
13244122631 is an equidigital number, since it uses as much as digits as its factorization.
13244122631 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 6912, while the sum is 29.
Adding to 13244122631 its reverse (13622144231), we get a palindrome (26866266862).
The spelling of 13244122631 in words is "thirteen billion, two hundred forty-four million, one hundred twenty-two thousand, six hundred thirty-one".
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