Base | Representation |
---|---|
bin | 11100000010111111… |
… | …101110010011100111 |
3 | 2212201202202001012122 |
4 | 130002333232103213 |
5 | 443133421431442 |
6 | 21500141340155 |
7 | 2114164351001 |
oct | 340277562347 |
9 | 85652661178 |
10 | 30115030247 |
11 | 11854170a55 |
12 | 5a0556765b |
13 | 2abc16bc33 |
14 | 165982d371 |
15 | bb3c9bdd2 |
hex | 702fee4e7 |
30115030247 has 2 divisors, whose sum is σ = 30115030248. Its totient is φ = 30115030246.
The previous prime is 30115030241. The next prime is 30115030249. The reversal of 30115030247 is 74203051103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30115030247 - 222 = 30110835943 is a prime.
Together with 30115030249, 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 (30115030241) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15057515123 + 15057515124.
It is an arithmetic number, because the mean of its divisors is an integer number (15057515124).
Almost surely, 230115030247 is an apocalyptic number.
30115030247 is a deficient number, since it is larger than the sum of its proper divisors (1).
30115030247 is an equidigital number, since it uses as much as digits as its factorization.
30115030247 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2520, while the sum is 26.
The spelling of 30115030247 in words is "thirty billion, one hundred fifteen million, thirty thousand, two hundred forty-seven".
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