Base | Representation |
---|---|
bin | 111101000110001000… |
… | …0110010011011111101 |
3 | 110112122201010212011100 |
4 | 1322030100302123331 |
5 | 4122200232330023 |
6 | 140135023043313 |
7 | 12323212361061 |
oct | 1721420623375 |
9 | 415581125140 |
10 | 131202230013 |
11 | 50708269358 |
12 | 21517440539 |
13 | c4abc9a03a |
14 | 64c9019aa1 |
15 | 362d68ec43 |
hex | 1e8c4326fd |
131202230013 has 24 divisors (see below), whose sum is σ = 202466232800. Its totient is φ = 81627774624.
The previous prime is 131202230011. The next prime is 131202230039. The reversal of 131202230013 is 310032202131.
It is not a de Polignac number, because 131202230013 - 21 = 131202230011 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131202230011) 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, 5714398 + ... + 5737311.
Almost surely, 2131202230013 is an apocalyptic number.
It is an amenable number.
131202230013 is a deficient number, since it is larger than the sum of its proper divisors (71264002787).
131202230013 is a wasteful number, since it uses less digits than its factorization.
131202230013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11451801 (or 11451798 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 131202230013 its reverse (310032202131), we get a palindrome (441234432144).
The spelling of 131202230013 in words is "one hundred thirty-one billion, two hundred two million, two hundred thirty thousand, thirteen".
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