Base | Representation |
---|---|
bin | 101011111111… |
… | …1000000000101 |
3 | 1121101210122202 |
4 | 1113333000011 |
5 | 21401031311 |
6 | 2142204245 |
7 | 400021451 |
oct | 127770005 |
9 | 47353582 |
10 | 23064581 |
11 | 12023841 |
12 | 7883685 |
13 | 4a172a7 |
14 | 30c5661 |
15 | 2058e3b |
hex | 15ff005 |
23064581 has 2 divisors, whose sum is σ = 23064582. Its totient is φ = 23064580.
The previous prime is 23064571. The next prime is 23064583. The reversal of 23064581 is 18546032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20784481 + 2280100 = 4559^2 + 1510^2 .
It is a cyclic number.
It is not a de Polignac number, because 23064581 - 222 = 18870277 is a prime.
It is a super-2 number, since 2×230645812 = 1063949793411122, which contains 22 as substring.
Together with 23064583, it forms a pair of twin primes.
It is a Chen prime.
It is a zygodrome in base 4.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23064583) 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, 11532290 + 11532291.
It is an arithmetic number, because the mean of its divisors is an integer number (11532291).
Almost surely, 223064581 is an apocalyptic number.
It is an amenable number.
23064581 is a deficient number, since it is larger than the sum of its proper divisors (1).
23064581 is an equidigital number, since it uses as much as digits as its factorization.
23064581 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5760, while the sum is 29.
The square root of 23064581 is about 4802.5598382529. The cubic root of 23064581 is about 284.6526228308.
The spelling of 23064581 in words is "twenty-three million, sixty-four thousand, five hundred eighty-one".
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