Base | Representation |
---|---|
bin | 110001101011… |
… | …111000101101 |
3 | 220111201200111 |
4 | 301223320231 |
5 | 11313243223 |
6 | 1143100021 |
7 | 215465134 |
oct | 61537055 |
9 | 26451614 |
10 | 13024813 |
11 | 739680a |
12 | 4441611 |
13 | 29105b9 |
14 | 1a3091b |
15 | 122430d |
hex | c6be2d |
13024813 has 2 divisors, whose sum is σ = 13024814. Its totient is φ = 13024812.
The previous prime is 13024793. The next prime is 13024849. The reversal of 13024813 is 31842031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7279204 + 5745609 = 2698^2 + 2397^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13024813 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13024853) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6512406 + 6512407.
It is an arithmetic number, because the mean of its divisors is an integer number (6512407).
Almost surely, 213024813 is an apocalyptic number.
It is an amenable number.
13024813 is a deficient number, since it is larger than the sum of its proper divisors (1).
13024813 is an equidigital number, since it uses as much as digits as its factorization.
13024813 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 22.
The square root of 13024813 is about 3608.9905790955. The cubic root of 13024813 is about 235.2829728410.
Adding to 13024813 its reverse (31842031), we get a palindrome (44866844).
The spelling of 13024813 in words is "thirteen million, twenty-four thousand, eight hundred thirteen".
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