Base | Representation |
---|---|
bin | 11000110010111011… |
… | …01010111010010111 |
3 | 1021100202002021012200 |
4 | 30121131222322113 |
5 | 204230400011411 |
6 | 10040540415543 |
7 | 650613033000 |
oct | 143135527227 |
9 | 37322067180 |
10 | 13312110231 |
11 | 57113804a2 |
12 | 26b62475b3 |
13 | 1341c4ca04 |
14 | 903db21a7 |
15 | 52da53e56 |
hex | 31976ae97 |
13312110231 has 48 divisors (see below), whose sum is σ = 23030280000. Its totient is φ = 7401264192.
The previous prime is 13312110211. The next prime is 13312110257. The reversal of 13312110231 is 13201121331.
13312110231 is a `hidden beast` number, since 13 + 312 + 110 + 231 = 666.
It is not a de Polignac number, because 13312110231 - 25 = 13312110199 is a prime.
It is a super-2 number, since 2×133121102312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13312110211) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55945 + ... + 172493.
It is an arithmetic number, because the mean of its divisors is an integer number (479797500).
Almost surely, 213312110231 is an apocalyptic number.
13312110231 is a deficient number, since it is larger than the sum of its proper divisors (9718169769).
13312110231 is a wasteful number, since it uses less digits than its factorization.
13312110231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116613 (or 116596 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 13312110231 its reverse (13201121331), we get a palindrome (26513231562).
The spelling of 13312110231 in words is "thirteen billion, three hundred twelve million, one hundred ten thousand, two hundred thirty-one".
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