Base | Representation |
---|---|
bin | 11011111100111010… |
… | …100011110011011101 |
3 | 2212110122210001010222 |
4 | 123330322203303131 |
5 | 442431312410323 |
6 | 21442055011125 |
7 | 2111515255151 |
oct | 337472436335 |
9 | 85418701128 |
10 | 30013013213 |
11 | 11801622057 |
12 | 5997369aa5 |
13 | 2aa3ca0321 |
14 | 164a075061 |
15 | ba9d499c8 |
hex | 6fcea3cdd |
30013013213 has 2 divisors, whose sum is σ = 30013013214. Its totient is φ = 30013013212.
The previous prime is 30013013209. The next prime is 30013013243. The reversal of 30013013213 is 31231031003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 22829094649 + 7183918564 = 151093^2 + 84758^2 .
It is a cyclic number.
It is not a de Polignac number, because 30013013213 - 22 = 30013013209 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30013013191 and 30013013200.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30013013243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006506606 + 15006506607.
It is an arithmetic number, because the mean of its divisors is an integer number (15006506607).
Almost surely, 230013013213 is an apocalyptic number.
It is an amenable number.
30013013213 is a deficient number, since it is larger than the sum of its proper divisors (1).
30013013213 is an equidigital number, since it uses as much as digits as its factorization.
30013013213 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 30013013213 its reverse (31231031003), we get a palindrome (61244044216).
The spelling of 30013013213 in words is "thirty billion, thirteen million, thirteen thousand, two hundred thirteen".
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