Base | Representation |
---|---|
bin | 110001110101… |
… | …110001000101 |
3 | 220120210012110 |
4 | 301311301011 |
5 | 11321042120 |
6 | 1144011233 |
7 | 216024132 |
oct | 61656105 |
9 | 26523173 |
10 | 13065285 |
11 | 7414162 |
12 | 4460b19 |
13 | 2925b4c |
14 | 1a41589 |
15 | 12312e0 |
hex | c75c45 |
13065285 has 32 divisors (see below), whose sum is σ = 21605760. Its totient is φ = 6739200.
The previous prime is 13065281. The next prime is 13065287. The reversal of 13065285 is 58256031.
13065285 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13065285 - 22 = 13065281 is a prime.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13065281) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99670 + ... + 99800.
It is an arithmetic number, because the mean of its divisors is an integer number (675180).
Almost surely, 213065285 is an apocalyptic number.
13065285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13065285 is a deficient number, since it is larger than the sum of its proper divisors (8540475).
13065285 is a wasteful number, since it uses less digits than its factorization.
13065285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309.
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 13065285 is about 3614.5933381226. The cubic root of 13065285 is about 235.5264191132.
The spelling of 13065285 in words is "thirteen million, sixty-five thousand, two hundred eighty-five".
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