Base | Representation |
---|---|
bin | 11100001100010101… |
… | …110110000100100001 |
3 | 2220010200210000000122 |
4 | 130030111312010201 |
5 | 443444041333121 |
6 | 21523502130025 |
7 | 2121110155055 |
oct | 341425660441 |
9 | 86120700018 |
10 | 30271824161 |
11 | 119247235a7 |
12 | 5a49b80915 |
13 | 2b157a92b7 |
14 | 16725a5c65 |
15 | bc291e5ab |
hex | 70c576121 |
30271824161 has 2 divisors, whose sum is σ = 30271824162. Its totient is φ = 30271824160.
The previous prime is 30271824139. The next prime is 30271824169. The reversal of 30271824161 is 16142817203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 26420877025 + 3850947136 = 162545^2 + 62056^2 .
It is an emirp because it is prime and its reverse (16142817203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30271824161 - 26 = 30271824097 is a prime.
It is not a weakly prime, because it can be changed into another prime (30271824169) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15135912080 + 15135912081.
It is an arithmetic number, because the mean of its divisors is an integer number (15135912081).
Almost surely, 230271824161 is an apocalyptic number.
It is an amenable number.
30271824161 is a deficient number, since it is larger than the sum of its proper divisors (1).
30271824161 is an equidigital number, since it uses as much as digits as its factorization.
30271824161 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 16128, while the sum is 35.
The spelling of 30271824161 in words is "thirty billion, two hundred seventy-one million, eight hundred twenty-four thousand, one hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •