21402900
21,402,900 is an even composite number composed of four prime numbers multiplied together.
21402900 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 21402900:
22 × 33 × 52 × 7927
(2 × 2 × 3 × 3 × 3 × 5 × 5 × 7927)See below for interesting mathematical facts about the number 21402900 from the Numbermatics database.
Names of 21402900
- Cardinal: 21402900 can be written as Twenty-one million, four hundred two thousand, nine hundred.
Scientific notation
- Scientific notation: 2.14029 × 107
Factors of 21402900
Divisors of 21402900
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 108 135 150 180 225 270 300 450 540 675 900 1350 2700 7927 15854 23781 31708 39635 47562 71343 79270 95124 118905 142686 158540 198175 214029 237810 285372 356715 396350 428058 475620 594525 713430 792700 856116 1070145 1189050 1426860 1783575 2140290 2378100 3567150 4280580 5350725 7134300 10701450 21402900
- Sum of all divisors σ(n): 68815040
- Sum of proper divisors (its aliquot sum) s(n): 47412140
- 21402900 is an abundant number, because the sum of its proper divisors (47412140) is greater than itself. Its abundance is 26009240
Bases of 21402900
- Binary: 10100011010010101000101002
- Hexadecimal: 0x1469514
- Base-36: CQQL0
Squares and roots of 21402900
- 21402900 squared (214029002) is 458084128410000
- 21402900 cubed (214029003) is 9804328791946389000000
-
The
square root of 21402900 is 4626.3268367033 -
The
cube root of 21402900 is 277.6456503475
Scales and comparisons
How big is 21402900?- 21,402,900 seconds is equal to 35 weeks, 2 days, 17 hours, 15 minutes.
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To count from 1 to 21,402,900 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 21402900 cubic inches would be around 23.1 feet tall.
Recreational maths with 21402900
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The information we have on file for 21402900 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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