21742812
21,742,812 is an even composite number composed of five prime numbers multiplied together.
What does the number 21742812 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
21742812 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21742812:
22 × 32 × 7 × 13 × 6637
(2 × 2 × 3 × 3 × 7 × 13 × 6637)See below for interesting mathematical facts about the number 21742812 from the Numbermatics database.
Names of 21742812
- Cardinal: 21742812 can be written as Twenty-one million, seven hundred forty-two thousand, eight hundred twelve.
Scientific notation
- Scientific notation: 2.1742812 × 107
Factors of 21742812
Divisors of 21742812
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 819 1092 1638 3276 6637 13274 19911 26548 39822 46459 59733 79644 86281 92918 119466 139377 172562 185836 238932 258843 278754 345124 418131 517686 557508 603967 776529 836262 1035372 1207934 1553058 1672524 1811901 2415868 3106116 3623802 5435703 7247604 10871406 21742812
- Sum of all divisors σ(n): 67654496
- Sum of proper divisors (its aliquot sum) s(n): 45911684
- 21742812 is an abundant number, because the sum of its proper divisors (45911684) is greater than itself. Its abundance is 24168872
Bases of 21742812
- Binary: 10100101111000100110111002
- Hexadecimal: 0x14BC4DC
- Base-36: CY0V0
Squares and roots of 21742812
- 21742812 squared (217428122) is 472749873667344
- 21742812 cubed (217428123) is 10278911626172811131328
-
The
square root of 21742812 is 4662.9188283735 -
The
cube root of 21742812 is 279.1077550401
Scales and comparisons
How big is 21742812?- 21,742,812 seconds is equal to 35 weeks, 6 days, 15 hours, 40 minutes, 12 seconds.
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To count from 1 to 21,742,812 would take you about six 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 21742812 cubic inches would be around 23.3 feet tall.
Recreational maths with 21742812
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The information we have on file for 21742812 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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