21842240
21,842,240 is an even composite number composed of four prime numbers multiplied together.
21842240 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 21842240:
26 × 5 × 73 × 199
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 199)See below for interesting mathematical facts about the number 21842240 from the Numbermatics database.
Names of 21842240
- Cardinal: 21842240 can be written as Twenty-one million, eight hundred forty-two thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.184224 × 107
Factors of 21842240
Divisors of 21842240
- Number of divisors d(n): 112
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 140 160 196 199 224 245 280 320 343 392 398 448 490 560 686 784 796 980 995 1120 1372 1393 1568 1592 1715 1960 1990 2240 2744 2786 3136 3184 3430 3920 3980 5488 5572 6368 6860 6965 7840 7960 9751 10976 11144 12736 13720 13930 15680 15920 19502 21952 22288 27440 27860 31840 39004 44576 48755 54880 55720 63680 68257 78008 89152 97510 109760 111440 136514 156016 195020 222880 273028 312032 341285 390040 445760 546056 624064 682570 780080 1092112 1365140 1560160 2184224 2730280 3120320 4368448 5460560 10921120 21842240
- Sum of all divisors σ(n): 60960000
- Sum of proper divisors (its aliquot sum) s(n): 39117760
- 21842240 is an abundant number, because the sum of its proper divisors (39117760) is greater than itself. Its abundance is 17275520
Bases of 21842240
- Binary: 10100110101001001010000002
- Hexadecimal: 0x14D4940
- Base-36: D05KW
Squares and roots of 21842240
- 21842240 squared (218422402) is 477083448217600
- 21842240 cubed (218422403) is 10420571175996391424000
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The
square root of 21842240 is 4673.5682299503 -
The
cube root of 21842240 is 279.5325533879
Scales and comparisons
How big is 21842240?- 21,842,240 seconds is equal to 36 weeks, 19 hours, 17 minutes, 20 seconds.
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To count from 1 to 21,842,240 would take you about two weeks!
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 21842240 cubic inches would be around 23.3 feet tall.
Recreational maths with 21842240
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The information we have on file for 21842240 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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