Base | Representation |
---|---|
bin | 111001010001… |
… | …1000010000111 |
3 | 2002111120112212 |
4 | 1302203002013 |
5 | 30141343121 |
6 | 2551334035 |
7 | 513142634 |
oct | 162430207 |
9 | 62446485 |
10 | 30027911 |
11 | 15a4a461 |
12 | a08131b |
13 | 62b48c4 |
14 | 3db918b |
15 | 298225b |
hex | 1ca3087 |
30027911 has 2 divisors, whose sum is σ = 30027912. Its totient is φ = 30027910.
The previous prime is 30027901. The next prime is 30027913. The reversal of 30027911 is 11972003.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30027911 is a prime.
Together with 30027913, 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 (30027913) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15013955 + 15013956.
It is an arithmetic number, because the mean of its divisors is an integer number (15013956).
Almost surely, 230027911 is an apocalyptic number.
30027911 is a deficient number, since it is larger than the sum of its proper divisors (1).
30027911 is an equidigital number, since it uses as much as digits as its factorization.
30027911 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 378, while the sum is 23.
The square root of 30027911 is about 5479.7728967540. The cubic root of 30027911 is about 310.8195829117.
Adding to 30027911 its reverse (11972003), we get a palindrome (41999914).
The spelling of 30027911 in words is "thirty million, twenty-seven thousand, nine hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.001 sec. • engine limits •