Base | Representation |
---|---|
bin | 111001110010… |
… | …1000100110111 |
3 | 2010000022121211 |
4 | 1303211010313 |
5 | 30224022143 |
6 | 3001222251 |
7 | 515350411 |
oct | 163450467 |
9 | 63008554 |
10 | 30298423 |
11 | 16114721 |
12 | a191987 |
13 | 637aa7c |
14 | 40499b1 |
15 | 29d749d |
hex | 1ce5137 |
30298423 has 2 divisors, whose sum is σ = 30298424. Its totient is φ = 30298422.
The previous prime is 30298421. The next prime is 30298427. The reversal of 30298423 is 32489203.
It is a weak prime.
It is an emirp because it is prime and its reverse (32489203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30298423 - 21 = 30298421 is a prime.
Together with 30298421, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30298421) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149211 + 15149212.
It is an arithmetic number, because the mean of its divisors is an integer number (15149212).
Almost surely, 230298423 is an apocalyptic number.
30298423 is a deficient number, since it is larger than the sum of its proper divisors (1).
30298423 is an equidigital number, since it uses as much as digits as its factorization.
30298423 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10368, while the sum is 31.
The square root of 30298423 is about 5504.4003306446. The cubic root of 30298423 is about 311.7501526786.
The spelling of 30298423 in words is "thirty million, two hundred ninety-eight thousand, four hundred twenty-three".
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