Base | Representation |
---|---|
bin | 11011111100110111… |
… | …001000100011111001 |
3 | 2212110121002102021222 |
4 | 123330313020203321 |
5 | 442431100141233 |
6 | 21442023441425 |
7 | 2111504525054 |
oct | 337467104371 |
9 | 85417072258 |
10 | 30012115193 |
11 | 11801069395 |
12 | 5996bb6275 |
13 | 2aa3a47658 |
14 | 1649cbda9b |
15 | ba9c1d898 |
hex | 6fcdc88f9 |
30012115193 has 2 divisors, whose sum is σ = 30012115194. Its totient is φ = 30012115192.
The previous prime is 30012115123. The next prime is 30012115201. The reversal of 30012115193 is 39151121003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 29018100409 + 994014784 = 170347^2 + 31528^2 .
It is an emirp because it is prime and its reverse (39151121003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30012115193 - 216 = 30012049657 is a prime.
It is not a weakly prime, because it can be changed into another prime (30012115123) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006057596 + 15006057597.
It is an arithmetic number, because the mean of its divisors is an integer number (15006057597).
Almost surely, 230012115193 is an apocalyptic number.
It is an amenable number.
30012115193 is a deficient number, since it is larger than the sum of its proper divisors (1).
30012115193 is an equidigital number, since it uses as much as digits as its factorization.
30012115193 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 810, while the sum is 26.
Adding to 30012115193 its reverse (39151121003), we get a palindrome (69163236196).
The spelling of 30012115193 in words is "thirty billion, twelve million, one hundred fifteen thousand, one hundred ninety-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •