Base | Representation |
---|---|
bin | 111001110010… |
… | …1000011001111 |
3 | 2010000022110222 |
4 | 1303211003033 |
5 | 30224021234 |
6 | 3001221555 |
7 | 515350202 |
oct | 163450317 |
9 | 63008428 |
10 | 30298319 |
11 | 16114637 |
12 | a1918bb |
13 | 637a9cc |
14 | 4049939 |
15 | 29d742e |
hex | 1ce50cf |
30298319 has 2 divisors, whose sum is σ = 30298320. Its totient is φ = 30298318.
The previous prime is 30298313. The next prime is 30298321. The reversal of 30298319 is 91389203.
It is a strong prime.
It is an emirp because it is prime and its reverse (91389203) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30298319 is a prime.
It is a super-2 number, since 2×302983192 = 1835976268451522, which contains 22 as substring.
Together with 30298321, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30298313) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149159 + 15149160.
It is an arithmetic number, because the mean of its divisors is an integer number (15149160).
Almost surely, 230298319 is an apocalyptic number.
30298319 is a deficient number, since it is larger than the sum of its proper divisors (1).
30298319 is an equidigital number, since it uses as much as digits as its factorization.
30298319 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 11664, while the sum is 35.
The square root of 30298319 is about 5504.3908836492. The cubic root of 30298319 is about 311.7497959818.
The spelling of 30298319 in words is "thirty million, two hundred ninety-eight thousand, three hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •