Base | Representation |
---|---|
bin | 110010000111… |
… | …100010010100 |
3 | 220201111001010 |
4 | 302013202110 |
5 | 11330404233 |
6 | 1145332220 |
7 | 216446256 |
oct | 62074224 |
9 | 26644033 |
10 | 13138068 |
11 | 7463909 |
12 | 4497070 |
13 | 2950008 |
14 | 1a5dcd6 |
15 | 1247b63 |
hex | c87894 |
13138068 has 24 divisors (see below), whose sum is σ = 30974272. Its totient is φ = 4333824.
The previous prime is 13138067. The next prime is 13138087. The reversal of 13138068 is 86083131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13138067) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4480 + ... + 6807.
Almost surely, 213138068 is an apocalyptic number.
It is an amenable number.
13138068 is an abundant number, since it is smaller than the sum of its proper divisors (17836204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13138068 is a wasteful number, since it uses less digits than its factorization.
13138068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11391 (or 11389 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 13138068 is about 3624.6472931859. The cubic root of 13138068 is about 235.9629598098.
The spelling of 13138068 in words is "thirteen million, one hundred thirty-eight thousand, sixty-eight".
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