Base | Representation |
---|---|
bin | 10100100000000001… |
… | …000111111011011101 |
3 | 2002211001110120010211 |
4 | 110200001013323131 |
5 | 330040033031023 |
6 | 14040121332421 |
7 | 1406322633661 |
oct | 244001077335 |
9 | 62731416124 |
10 | 22012002013 |
11 | 9376223a01 |
12 | 4323937111 |
13 | 20ca494b81 |
14 | 10cb5c68a1 |
15 | 88c6eea0d |
hex | 520047edd |
22012002013 has 2 divisors, whose sum is σ = 22012002014. Its totient is φ = 22012002012.
The previous prime is 22012002007. The next prime is 22012002031. The reversal of 22012002013 is 31020021022.
Together with next prime (22012002031) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16982781124 + 5029220889 = 130318^2 + 70917^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-22012002013 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 22012001984 and 22012002002.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (22012002613) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006001006 + 11006001007.
It is an arithmetic number, because the mean of its divisors is an integer number (11006001007).
Almost surely, 222012002013 is an apocalyptic number.
It is an amenable number.
22012002013 is a deficient number, since it is larger than the sum of its proper divisors (1).
22012002013 is an equidigital number, since it uses as much as digits as its factorization.
22012002013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 22012002013 its reverse (31020021022), we get a palindrome (53032023035).
The spelling of 22012002013 in words is "twenty-two billion, twelve million, two thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •