Base | Representation |
---|---|
bin | 11011111111100011… |
… | …100000101110000101 |
3 | 2212120202010012012101 |
4 | 123333203200232011 |
5 | 443024132143132 |
6 | 21450320152101 |
7 | 2112563600515 |
oct | 337743405605 |
9 | 85522105171 |
10 | 30057302917 |
11 | 11824622614 |
12 | 59aa168631 |
13 | 2ab0209555 |
14 | 1651cc3845 |
15 | badb977e7 |
hex | 6ff8e0b85 |
30057302917 has 2 divisors, whose sum is σ = 30057302918. Its totient is φ = 30057302916.
The previous prime is 30057302831. The next prime is 30057302921. The reversal of 30057302917 is 71920375003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20270355876 + 9786947041 = 142374^2 + 98929^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30057302917 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30057392917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15028651458 + 15028651459.
It is an arithmetic number, because the mean of its divisors is an integer number (15028651459).
Almost surely, 230057302917 is an apocalyptic number.
It is an amenable number.
30057302917 is a deficient number, since it is larger than the sum of its proper divisors (1).
30057302917 is an equidigital number, since it uses as much as digits as its factorization.
30057302917 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 39690, while the sum is 37.
The spelling of 30057302917 in words is "thirty billion, fifty-seven million, three hundred two thousand, nine hundred seventeen".
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