Base | Representation |
---|---|
bin | 11011111101001100… |
… | …100011011011011101 |
3 | 2212110222122200201202 |
4 | 123331030203123131 |
5 | 442434014332034 |
6 | 21442344045245 |
7 | 2111603332412 |
oct | 337514433335 |
9 | 85428580652 |
10 | 30017730269 |
11 | 1180425404a |
12 | 5998a63825 |
13 | 2aa4c62397 |
14 | 164a942109 |
15 | baa47c47e |
hex | 6fd3236dd |
30017730269 has 2 divisors, whose sum is σ = 30017730270. Its totient is φ = 30017730268.
The previous prime is 30017730247. The next prime is 30017730271. The reversal of 30017730269 is 96203771003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 29245446169 + 772284100 = 171013^2 + 27790^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30017730269 is a prime.
It is a super-2 number, since 2×300177302692 (a number of 22 digits) contains 22 as substring.
Together with 30017730271, 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 (30017730209) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15008865134 + 15008865135.
It is an arithmetic number, because the mean of its divisors is an integer number (15008865135).
Almost surely, 230017730269 is an apocalyptic number.
It is an amenable number.
30017730269 is a deficient number, since it is larger than the sum of its proper divisors (1).
30017730269 is an equidigital number, since it uses as much as digits as its factorization.
30017730269 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 47628, while the sum is 38.
The spelling of 30017730269 in words is "thirty billion, seventeen million, seven hundred thirty thousand, two hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •