Base | Representation |
---|---|
bin | 111001001111… |
… | …1110101100011 |
3 | 2002110220120222 |
4 | 1302133311203 |
5 | 30140433234 |
6 | 2551153255 |
7 | 513056522 |
oct | 162376543 |
9 | 62426528 |
10 | 30014819 |
11 | 15a4063a |
12 | a07582b |
13 | 62ab963 |
14 | 3db44b9 |
15 | 297d42e |
hex | 1c9fd63 |
30014819 has 2 divisors, whose sum is σ = 30014820. Its totient is φ = 30014818.
The previous prime is 30014783. The next prime is 30014821. The reversal of 30014819 is 91841003.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30014819 - 212 = 30010723 is a prime.
It is a super-2 number, since 2×300148192 = 1801778719205522, which contains 22 as substring.
It is a Sophie Germain prime.
Together with 30014821, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30014849) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15007409 + 15007410.
It is an arithmetic number, because the mean of its divisors is an integer number (15007410).
Almost surely, 230014819 is an apocalyptic number.
30014819 is a deficient number, since it is larger than the sum of its proper divisors (1).
30014819 is an equidigital number, since it uses as much as digits as its factorization.
30014819 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 26.
The square root of 30014819 is about 5478.5781914654. The cubic root of 30014819 is about 310.7744044830.
The spelling of 30014819 in words is "thirty million, fourteen thousand, eight hundred nineteen".
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