Base | Representation |
---|---|
bin | 11000101000010011… |
… | …10110110101000001 |
3 | 1021010112110112012212 |
4 | 30110021312311001 |
5 | 204040043430311 |
6 | 10024035231505 |
7 | 645451621052 |
oct | 142411666501 |
9 | 37115415185 |
10 | 13223030081 |
11 | 5676068238 |
12 | 2690448595 |
13 | 1329660671 |
14 | 8d6224729 |
15 | 525d09c8b |
hex | 314276d41 |
13223030081 has 2 divisors, whose sum is σ = 13223030082. Its totient is φ = 13223030080.
The previous prime is 13223030071. The next prime is 13223030111. The reversal of 13223030081 is 18003032231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9587543056 + 3635487025 = 97916^2 + 60295^2 .
It is a cyclic number.
It is not a de Polignac number, because 13223030081 - 26 = 13223030017 is a prime.
It is a super-2 number, since 2×132230300812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13223030071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611515040 + 6611515041.
It is an arithmetic number, because the mean of its divisors is an integer number (6611515041).
Almost surely, 213223030081 is an apocalyptic number.
It is an amenable number.
13223030081 is a deficient number, since it is larger than the sum of its proper divisors (1).
13223030081 is an equidigital number, since it uses as much as digits as its factorization.
13223030081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 864, while the sum is 23.
The spelling of 13223030081 in words is "thirteen billion, two hundred twenty-three million, thirty thousand, eighty-one".
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