21284
21,284 is an even composite number composed of three prime numbers multiplied together.
21284 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.
Prime factorization of 21284:
22 × 17 × 313
(2 × 2 × 17 × 313)See below for interesting mathematical facts about the number 21284 from the Numbermatics database.
Names of 21284
- Cardinal: 21284 can be written as Twenty-one thousand, two hundred eighty-four.
Scientific notation
- Scientific notation: 2.1284 × 104
Factors of 21284
Divisors of 21284
Bases of 21284
- Binary: 1010011001001002
- Hexadecimal: 0x5324
- Base-36: GF8
Squares and roots of 21284
- 21284 squared (212842) is 453008656
- 21284 cubed (212843) is 9641836234304
-
The
square root of 21284 is 145.8903697985 -
The
cube root of 21284 is 27.7130558339
Scales and comparisons
How big is 21284?- 21,284 seconds is equal to 5 hours, 54 minutes, 44 seconds.
-
To count from 1 to 21,284 would take you about five hours.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 21284 cubic inches would be around 2.3 feet tall.
Recreational maths with 21284
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