Base | Representation |
---|---|
bin | 110011010000… |
… | …111011011000 |
3 | 221021202101220 |
4 | 303100323120 |
5 | 11420014210 |
6 | 1200012040 |
7 | 222140553 |
oct | 63207330 |
9 | 27252356 |
10 | 13438680 |
11 | 7649752 |
12 | 4601020 |
13 | 2a26aa8 |
14 | 1adb69a |
15 | 12a6c70 |
hex | cd0ed8 |
13438680 has 64 divisors (see below), whose sum is σ = 41096160. Its totient is φ = 3514368.
The previous prime is 13438679. The next prime is 13438697. The reversal of 13438680 is 8683431.
13438680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5304 + ... + 7416.
Almost surely, 213438680 is an apocalyptic number.
13438680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13438680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20548080).
13438680 is an abundant number, since it is smaller than the sum of its proper divisors (27657480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13438680 is a wasteful number, since it uses less digits than its factorization.
13438680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2180 (or 2176 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 33.
The square root of 13438680 is about 3665.8805217846. The cubic root of 13438680 is about 237.7490941484.
The spelling of 13438680 in words is "thirteen million, four hundred thirty-eight thousand, six hundred eighty".
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