21264
21,264 is an even composite number composed of three prime numbers multiplied together.
21264 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.
Prime factorization of 21264:
24 × 3 × 443
(2 × 2 × 2 × 2 × 3 × 443)See below for interesting mathematical facts about the number 21264 from the Numbermatics database.
Names of 21264
- Cardinal: 21264 can be written as Twenty-one thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 2.1264 × 104
Factors of 21264
Divisors of 21264
Bases of 21264
- Binary: 1010011000100002
- Hexadecimal: 0x5310
- Base-36: GEO
Squares and roots of 21264
- 21264 squared (212642) is 452157696
- 21264 cubed (212643) is 9614681247744
-
The
square root of 21264 is 145.8218090683 -
The
cube root of 21264 is 27.7043727105
Scales and comparisons
How big is 21264?- 21,264 seconds is equal to 5 hours, 54 minutes, 24 seconds.
-
To count from 1 to 21,264 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 21264 cubic inches would be around 2.3 feet tall.
Recreational maths with 21264
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