21720132
21,720,132 is an even composite number composed of four prime numbers multiplied together.
21720132 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21720132:
22 × 32 × 73 × 1759
(2 × 2 × 3 × 3 × 7 × 7 × 7 × 1759)See below for interesting mathematical facts about the number 21720132 from the Numbermatics database.
Names of 21720132
- Cardinal: 21720132 can be written as Twenty-one million, seven hundred twenty thousand, one hundred thirty-two.
Scientific notation
- Scientific notation: 2.1720132 × 107
Factors of 21720132
Divisors of 21720132
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 343 441 588 686 882 1029 1372 1759 1764 2058 3087 3518 4116 5277 6174 7036 10554 12313 12348 15831 21108 24626 31662 36939 49252 63324 73878 86191 110817 147756 172382 221634 258573 344764 443268 517146 603337 775719 1034292 1206674 1551438 1810011 2413348 3102876 3620022 5430033 7240044 10860066 21720132
- Sum of all divisors σ(n): 64064000
- Sum of proper divisors (its aliquot sum) s(n): 42343868
- 21720132 is an abundant number, because the sum of its proper divisors (42343868) is greater than itself. Its abundance is 20623736
Bases of 21720132
- Binary: 10100101101101100010001002
- Hexadecimal: 0x14B6C44
- Base-36: CXJD0
Squares and roots of 21720132
- 21720132 squared (217201322) is 471764134097424
- 21720132 cubed (217201323) is 10246779265461750139968
-
The
square root of 21720132 is 4660.4862407263 -
The
cube root of 21720132 is 279.0106751995
Scales and comparisons
How big is 21720132?- 21,720,132 seconds is equal to 35 weeks, 6 days, 9 hours, 22 minutes, 12 seconds.
-
To count from 1 to 21,720,132 would take you about six days!
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 21720132 cubic inches would be around 23.3 feet tall.
Recreational maths with 21720132
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The information we have on file for 21720132 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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