21242480
21,242,480 is an even composite number composed of four prime numbers multiplied together.
21242480 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21242480:
24 × 5 × 72 × 5419
(2 × 2 × 2 × 2 × 5 × 7 × 7 × 5419)See below for interesting mathematical facts about the number 21242480 from the Numbermatics database.
Names of 21242480
- Cardinal: 21242480 can be written as Twenty-one million, two hundred forty-two thousand, four hundred eighty.
Scientific notation
- Scientific notation: 2.124248 × 107
Factors of 21242480
Divisors of 21242480
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920 5419 10838 21676 27095 37933 43352 54190 75866 86704 108380 151732 189665 216760 265531 303464 379330 433520 531062 606928 758660 1062124 1327655 1517320 2124248 2655310 3034640 4248496 5310620 10621240 21242480
- Sum of all divisors σ(n): 57462840
- Sum of proper divisors (its aliquot sum) s(n): 36220360
- 21242480 is an abundant number, because the sum of its proper divisors (36220360) is greater than itself. Its abundance is 14977880
Bases of 21242480
- Binary: 10100010000100010011100002
- Hexadecimal: 0x1442270
- Base-36: CNASW
Squares and roots of 21242480
- 21242480 squared (212424802) is 451242956550400
- 21242480 cubed (212424803) is 9585519479662740992000
-
The
square root of 21242480 is 4608.9564979503 -
The
cube root of 21242480 is 276.9502358611
Scales and comparisons
How big is 21242480?- 21,242,480 seconds is equal to 35 weeks, 20 hours, 41 minutes, 20 seconds.
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To count from 1 to 21,242,480 would take you about four 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 21242480 cubic inches would be around 23.1 feet tall.
Recreational maths with 21242480
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The information we have on file for 21242480 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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