Base | Representation |
---|---|
bin | 111001011100… |
… | …1000011001101 |
3 | 2002200011020221 |
4 | 1302321003031 |
5 | 30202234333 |
6 | 2553311341 |
7 | 513666565 |
oct | 162710315 |
9 | 62604227 |
10 | 30118093 |
11 | 16001195 |
12 | a105551 |
13 | 6316975 |
14 | 3dddda5 |
15 | 299dd2d |
hex | 1cb90cd |
30118093 has 2 divisors, whose sum is σ = 30118094. Its totient is φ = 30118092.
The previous prime is 30118091. The next prime is 30118147. The reversal of 30118093 is 39081103.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29789764 + 328329 = 5458^2 + 573^2 .
It is an emirp because it is prime and its reverse (39081103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30118093 - 21 = 30118091 is a prime.
Together with 30118091, 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 (30118091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15059046 + 15059047.
It is an arithmetic number, because the mean of its divisors is an integer number (15059047).
Almost surely, 230118093 is an apocalyptic number.
It is an amenable number.
30118093 is a deficient number, since it is larger than the sum of its proper divisors (1).
30118093 is an equidigital number, since it uses as much as digits as its factorization.
30118093 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 25.
The square root of 30118093 is about 5487.9953534966. The cubic root of 30118093 is about 311.1304305699.
Adding to 30118093 its reverse (39081103), we get a palindrome (69199196).
The spelling of 30118093 in words is "thirty million, one hundred eighteen thousand, ninety-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •