Base | Representation |
---|---|
bin | 111001110110… |
… | …0111110101001 |
3 | 2010001222000201 |
4 | 1303230332221 |
5 | 30231041133 |
6 | 3002032201 |
7 | 515543653 |
oct | 163547651 |
9 | 63058021 |
10 | 30330793 |
11 | 16136a79 |
12 | a1a8661 |
13 | 638c71c |
14 | 40576d3 |
15 | 29e1d7d |
hex | 1cecfa9 |
30330793 has 2 divisors, whose sum is σ = 30330794. Its totient is φ = 30330792.
The previous prime is 30330791. The next prime is 30330799. The reversal of 30330793 is 39703303.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 21874329 + 8456464 = 4677^2 + 2908^2 .
It is an emirp because it is prime and its reverse (39703303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30330793 - 21 = 30330791 is a prime.
Together with 30330791, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (30330791) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165396 + 15165397.
It is an arithmetic number, because the mean of its divisors is an integer number (15165397).
Almost surely, 230330793 is an apocalyptic number.
It is an amenable number.
30330793 is a deficient number, since it is larger than the sum of its proper divisors (1).
30330793 is an equidigital number, since it uses as much as digits as its factorization.
30330793 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5103, while the sum is 28.
The square root of 30330793 is about 5507.3399205061. The cubic root of 30330793 is about 311.8611349212.
The spelling of 30330793 in words is "thirty million, three hundred thirty thousand, seven hundred ninety-three".
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