Base | Representation |
---|---|
bin | 110100111001… |
… | …110001011101 |
3 | 222002120111021 |
4 | 310321301131 |
5 | 12022240000 |
6 | 1213124141 |
7 | 225606565 |
oct | 64716135 |
9 | 28076437 |
10 | 13868125 |
11 | 7912367 |
12 | 4789651 |
13 | 2b473bb |
14 | 1badda5 |
15 | 133e11a |
hex | d39c5d |
13868125 has 10 divisors (see below), whose sum is σ = 17330390. Its totient is φ = 11094000.
The previous prime is 13868123. The next prime is 13868131. The reversal of 13868125 is 52186831.
It can be written as a sum of positive squares in 5 ways, for example, as 4301476 + 9566649 = 2074^2 + 3093^2 .
It is not a de Polignac number, because 13868125 - 21 = 13868123 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13868123) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10470 + ... + 11719.
It is an arithmetic number, because the mean of its divisors is an integer number (1733039).
Almost surely, 213868125 is an apocalyptic number.
It is an amenable number.
13868125 is a deficient number, since it is larger than the sum of its proper divisors (3462265).
13868125 is an frugal number, since it uses more digits than its factorization.
13868125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22209 (or 22194 counting only the distinct ones).
The product of its digits is 11520, while the sum is 34.
The square root of 13868125 is about 3723.9931525179. The cubic root of 13868125 is about 240.2550818019.
The spelling of 13868125 in words is "thirteen million, eight hundred sixty-eight thousand, one hundred twenty-five".
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