20021
20,021 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.
20021 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 20021:
20021
See below for interesting mathematical facts about the number 20021 from the Numbermatics database.
Names of 20021
- Cardinal: 20021 can be written as Twenty thousand and twenty-one.
Scientific notation
- Scientific notation: 2.0021 × 104
Factors of 20021
Divisors of 20021
Bases of 20021
- Binary: 1001110001101012
- Hexadecimal: 0x4E35
- Base-36: FG5
Squares and roots of 20021
- 20021 squared (200212) is 400840441
- 20021 cubed (200213) is 8025226469261
-
The
square root of 20021 is 141.4955829701 -
The
cube root of 20021 is 27.1536733043
Scales and comparisons
How big is 20021?- 20,021 seconds is equal to 5 hours, 33 minutes, 41 seconds.
-
To count from 1 to 20,021 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 20021 cubic inches would be around 2.3 feet tall.
Recreational maths with 20021
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The information we have on file for 20021 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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