Base | Representation |
---|---|
bin | 11100001000110101… |
… | …111100100001001001 |
3 | 2212222121100001012102 |
4 | 130020311330201021 |
5 | 443334030132223 |
6 | 21514004123145 |
7 | 2116465241012 |
oct | 341065744111 |
9 | 85877301172 |
10 | 30213130313 |
11 | 118a4584a93 |
12 | 5a323964b5 |
13 | 2b06598a02 |
14 | 1668888009 |
15 | bbc6c8928 |
hex | 708d7c849 |
30213130313 has 2 divisors, whose sum is σ = 30213130314. Its totient is φ = 30213130312.
The previous prime is 30213130279. The next prime is 30213130327. The reversal of 30213130313 is 31303131203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22092957769 + 8120172544 = 148637^2 + 90112^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30213130313 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (30213130333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106565156 + 15106565157.
It is an arithmetic number, because the mean of its divisors is an integer number (15106565157).
Almost surely, 230213130313 is an apocalyptic number.
It is an amenable number.
30213130313 is a deficient number, since it is larger than the sum of its proper divisors (1).
30213130313 is an equidigital number, since it uses as much as digits as its factorization.
30213130313 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 486, while the sum is 20.
Adding to 30213130313 its reverse (31303131203), we get a palindrome (61516261516).
The spelling of 30213130313 in words is "thirty billion, two hundred thirteen million, one hundred thirty thousand, three hundred thirteen".
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