21401856
21,401,856 is an even composite number composed of four prime numbers multiplied together.
21401856 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 21401856:
28 × 32 × 7 × 1327
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 1327)See below for interesting mathematical facts about the number 21401856 from the Numbermatics database.
Names of 21401856
- Cardinal: 21401856 can be written as Twenty-one million, four hundred one thousand, eight hundred fifty-six.
Scientific notation
- Scientific notation: 2.1401856 × 107
Factors of 21401856
Divisors of 21401856
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 256 288 336 384 448 504 576 672 768 896 1008 1152 1327 1344 1792 2016 2304 2654 2688 3981 4032 5308 5376 7962 8064 9289 10616 11943 15924 16128 18578 21232 23886 27867 31848 37156 42464 47772 55734 63696 74312 83601 84928 95544 111468 127392 148624 167202 169856 191088 222936 254784 297248 334404 339712 382176 445872 509568 594496 668808 764352 891744 1019136 1188992 1337616 1528704 1783488 2377984 2675232 3057408 3566976 5350464 7133952 10700928 21401856
- Sum of all divisors σ(n): 70575232
- Sum of proper divisors (its aliquot sum) s(n): 49173376
- 21401856 is an abundant number, because the sum of its proper divisors (49173376) is greater than itself. Its abundance is 27771520
Bases of 21401856
- Binary: 10100011010010001000000002
- Hexadecimal: 0x1469100
- Base-36: CQPS0
Squares and roots of 21401856
- 21401856 squared (214018562) is 458039440244736
- 21401856 cubed (214018563) is 9802894142438444630016
-
The
square root of 21401856 is 4626.2140028321 -
The
cube root of 21401856 is 277.6411359005
Scales and comparisons
How big is 21401856?- 21,401,856 seconds is equal to 35 weeks, 2 days, 16 hours, 57 minutes, 36 seconds.
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To count from 1 to 21,401,856 would take you about thirteen 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 21401856 cubic inches would be around 23.1 feet tall.
Recreational maths with 21401856
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The information we have on file for 21401856 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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