Base | Representation |
---|---|
bin | 11100100110011101… |
… | …111001110010111111 |
3 | 2221021020112222001211 |
4 | 130212131321302333 |
5 | 1000343244103231 |
6 | 22035200545251 |
7 | 2135011630036 |
oct | 344635716277 |
9 | 87236488054 |
10 | 30710144191 |
11 | 1202a091961 |
12 | 5b50922227 |
13 | 2b8554686c |
14 | 16b48a371d |
15 | beb151eb1 |
hex | 726779cbf |
30710144191 has 2 divisors, whose sum is σ = 30710144192. Its totient is φ = 30710144190.
The previous prime is 30710144183. The next prime is 30710144281. The reversal of 30710144191 is 19144101703.
It is a weak prime.
It is an emirp because it is prime and its reverse (19144101703) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30710144191 - 23 = 30710144183 is a prime.
It is a super-2 number, since 2×307101441912 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30710144161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15355072095 + 15355072096.
It is an arithmetic number, because the mean of its divisors is an integer number (15355072096).
Almost surely, 230710144191 is an apocalyptic number.
30710144191 is a deficient number, since it is larger than the sum of its proper divisors (1).
30710144191 is an equidigital number, since it uses as much as digits as its factorization.
30710144191 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3024, while the sum is 31.
Adding to 30710144191 its reverse (19144101703), we get a palindrome (49854245894).
The spelling of 30710144191 in words is "thirty billion, seven hundred ten million, one hundred forty-four thousand, one hundred ninety-one".
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