Base | Representation |
---|---|
bin | 11000011010110111… |
… | …11100011011111011 |
3 | 1020211200101211022200 |
4 | 30031123330123323 |
5 | 203322221044011 |
6 | 10004531521243 |
7 | 642612655512 |
oct | 141533743373 |
9 | 36750354280 |
10 | 13110331131 |
11 | 5618492907 |
12 | 265a759223 |
13 | 130c1c19b1 |
14 | 8c5289679 |
15 | 51ae97856 |
hex | 30d6fc6fb |
13110331131 has 24 divisors (see below), whose sum is σ = 19902704640. Its totient is φ = 8300047536.
The previous prime is 13110331111. The next prime is 13110331163. The reversal of 13110331131 is 13113301131.
It is not a de Polignac number, because 13110331131 - 211 = 13110329083 is a prime.
It is a super-2 number, since 2×131103311312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13110331111) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199051 + ... + 256596.
It is an arithmetic number, because the mean of its divisors is an integer number (829279360).
Almost surely, 213110331131 is an apocalyptic number.
13110331131 is a deficient number, since it is larger than the sum of its proper divisors (6792373509).
13110331131 is a wasteful number, since it uses less digits than its factorization.
13110331131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 455815 (or 455812 counting only the distinct ones).
The product of its (nonzero) digits is 81, while the sum is 18.
Adding to 13110331131 its reverse (13113301131), we get a palindrome (26223632262).
The spelling of 13110331131 in words is "thirteen billion, one hundred ten million, three hundred thirty-one thousand, one hundred thirty-one".
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