21042864
21,042,864 is an even composite number composed of four prime numbers multiplied together.
21042864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21042864:
24 × 32 × 29 × 5039
(2 × 2 × 2 × 2 × 3 × 3 × 29 × 5039)See below for interesting mathematical facts about the number 21042864 from the Numbermatics database.
Names of 21042864
- Cardinal: 21042864 can be written as Twenty-one million, forty-two thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.1042864 × 107
Factors of 21042864
Divisors of 21042864
- Number of divisors d(n): 60
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 116 144 174 232 261 348 464 522 696 1044 1392 2088 4176 5039 10078 15117 20156 30234 40312 45351 60468 80624 90702 120936 146131 181404 241872 292262 362808 438393 584524 725616 876786 1169048 1315179 1753572 2338096 2630358 3507144 5260716 7014288 10521432 21042864
- Sum of all divisors σ(n): 60933600
- Sum of proper divisors (its aliquot sum) s(n): 39890736
- 21042864 is an abundant number, because the sum of its proper divisors (39890736) is greater than itself. Its abundance is 18847872
Bases of 21042864
- Binary: 10100000100010110101100002
- Hexadecimal: 0x14116B0
- Base-36: CJ0S0
Squares and roots of 21042864
- 21042864 squared (210428642) is 442802125322496
- 21042864 cubed (210428643) is 9317824902072239468544
-
The
square root of 21042864 is 4587.2501566843 -
The
cube root of 21042864 is 276.0800020129
Scales and comparisons
How big is 21042864?- 21,042,864 seconds is equal to 34 weeks, 5 days, 13 hours, 14 minutes, 24 seconds.
-
To count from 1 to 21,042,864 would take you about seven 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 21042864 cubic inches would be around 23 feet tall.
Recreational maths with 21042864
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 21042864 - Facts about the integer". Numbermatics.com. 2024. Web. 27 May 2024.
APA style:
Numbermatics. (2024). Number 21042864 - Facts about the integer. Retrieved 27 May 2024, from https://numbermatics.com/n/21042864/
Chicago style:
Numbermatics. 2024. "Number 21042864 - Facts about the integer". https://numbermatics.com/n/21042864/
The information we have on file for 21042864 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!
Keywords: Divisors of 21042864, math, Factors of 21042864, curriculum, school, college, exams, university, Prime factorization of 21042864, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, forty-two thousand, eight hundred sixty-four.