Base | Representation |
---|---|
bin | 10010101001011110… |
… | …111010100110000101 |
3 | 1220200110102012102001 |
4 | 102221132322212011 |
5 | 312001432314023 |
6 | 13110521145301 |
7 | 1306124303011 |
oct | 225136724605 |
9 | 56613365361 |
10 | 20023323013 |
11 | 8545709a41 |
12 | 3a6992b231 |
13 | 1b71482735 |
14 | d7d437541 |
15 | 7c2d266ad |
hex | 4a97ba985 |
20023323013 has 8 divisors (see below), whose sum is σ = 20088990656. Its totient is φ = 19957687200.
The previous prime is 20023322987. The next prime is 20023323031. The reversal of 20023323013 is 31032332002.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20023323013 - 229 = 19486452101 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 (20023323083) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419120 + ... + 2427382.
It is an arithmetic number, because the mean of its divisors is an integer number (2511123832).
Almost surely, 220023323013 is an apocalyptic number.
It is an amenable number.
20023323013 is a deficient number, since it is larger than the sum of its proper divisors (65667643).
20023323013 is an equidigital number, since it uses as much as digits as its factorization.
20023323013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15915.
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 20023323013 its reverse (31032332002), we get a palindrome (51055655015).
The spelling of 20023323013 in words is "twenty billion, twenty-three million, three hundred twenty-three thousand, thirteen".
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