Base | Representation |
---|---|
bin | 11100011011100101… |
… | …010101110100110111 |
3 | 2220210111221221120011 |
4 | 130123211111310313 |
5 | 1000010022412011 |
6 | 22005115121051 |
7 | 2130333563563 |
oct | 343345256467 |
9 | 86714857504 |
10 | 30527544631 |
11 | 11a46004131 |
12 | 5abb743187 |
13 | 2b5677269c |
14 | 16985306a3 |
15 | bda0d3621 |
hex | 71b955d37 |
30527544631 has 2 divisors, whose sum is σ = 30527544632. Its totient is φ = 30527544630.
The previous prime is 30527544613. The next prime is 30527544643. The reversal of 30527544631 is 13644572503.
It is a happy number.
Together with previous prime (30527544613) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is an emirp because it is prime and its reverse (13644572503) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30527544631 - 25 = 30527544599 is a prime.
It is a super-2 number, since 2×305275446312 (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 (30527544331) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15263772315 + 15263772316.
It is an arithmetic number, because the mean of its divisors is an integer number (15263772316).
Almost surely, 230527544631 is an apocalyptic number.
30527544631 is a deficient number, since it is larger than the sum of its proper divisors (1).
30527544631 is an equidigital number, since it uses as much as digits as its factorization.
30527544631 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 302400, while the sum is 40.
The spelling of 30527544631 in words is "thirty billion, five hundred twenty-seven million, five hundred forty-four thousand, six hundred thirty-one".
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