21381168
21,381,168 is an even composite number composed of five prime numbers multiplied together.
What does the number 21381168 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.
21381168 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21381168:
24 × 3 × 23 × 107 × 181
(2 × 2 × 2 × 2 × 3 × 23 × 107 × 181)See below for interesting mathematical facts about the number 21381168 from the Numbermatics database.
Names of 21381168
- Cardinal: 21381168 can be written as Twenty-one million, three hundred eighty-one thousand, one hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1381168 × 107
Factors of 21381168
Divisors of 21381168
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 8 12 16 23 24 46 48 69 92 107 138 181 184 214 276 321 362 368 428 543 552 642 724 856 1086 1104 1284 1448 1712 2172 2461 2568 2896 4163 4344 4922 5136 7383 8326 8688 9844 12489 14766 16652 19367 19688 24978 29532 33304 38734 39376 49956 58101 59064 66608 77468 99912 116202 118128 154936 199824 232404 309872 445441 464808 890882 929616 1336323 1781764 2672646 3563528 5345292 7127056 10690584 21381168
- Sum of all divisors σ(n): 58496256
- Sum of proper divisors (its aliquot sum) s(n): 37115088
- 21381168 is an abundant number, because the sum of its proper divisors (37115088) is greater than itself. Its abundance is 15733920
Bases of 21381168
- Binary: 10100011001000000001100002
- Hexadecimal: 0x1464030
- Base-36: CQ9TC
Squares and roots of 21381168
- 21381168 squared (213811682) is 457154345044224
- 21381168 cubed (213811683) is 9774493853320520773632
-
The
square root of 21381168 is 4623.9775085959 -
The
cube root of 21381168 is 277.5516469085
Scales and comparisons
How big is 21381168?- 21,381,168 seconds is equal to 35 weeks, 2 days, 11 hours, 12 minutes, 48 seconds.
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To count from 1 to 21,381,168 would take you about four 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 21381168 cubic inches would be around 23.1 feet tall.
Recreational maths with 21381168
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The information we have on file for 21381168 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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