Base | Representation |
---|---|
bin | 11100000110000001… |
… | …110010111110011111 |
3 | 2212212022110202200021 |
4 | 130012001302332133 |
5 | 443234432432221 |
6 | 21505200013011 |
7 | 2115352651543 |
oct | 340601627637 |
9 | 85768422607 |
10 | 30165905311 |
11 | 1187a95a163 |
12 | 5a1a601167 |
13 | 2ac9872719 |
14 | 16624b3a23 |
15 | bb849b041 |
hex | 706072f9f |
30165905311 has 2 divisors, whose sum is σ = 30165905312. Its totient is φ = 30165905310.
The previous prime is 30165905309. The next prime is 30165905317. The reversal of 30165905311 is 11350956103.
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (11350956103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30165905311 - 21 = 30165905309 is a prime.
Together with 30165905309, 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 (30165905317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15082952655 + 15082952656.
It is an arithmetic number, because the mean of its divisors is an integer number (15082952656).
Almost surely, 230165905311 is an apocalyptic number.
30165905311 is a deficient number, since it is larger than the sum of its proper divisors (1).
30165905311 is an equidigital number, since it uses as much as digits as its factorization.
30165905311 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12150, while the sum is 34.
The spelling of 30165905311 in words is "thirty billion, one hundred sixty-five million, nine hundred five thousand, three hundred eleven".
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