21421680
21,421,680 is an even composite number composed of six prime numbers multiplied together.
21421680 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21421680:
24 × 3 × 5 × 7 × 41 × 311
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 41 × 311)See below for interesting mathematical facts about the number 21421680 from the Numbermatics database.
Names of 21421680
- Cardinal: 21421680 can be written as Twenty-one million, four hundred twenty-one thousand, six hundred eighty.
Scientific notation
- Scientific notation: 2.142168 × 107
Factors of 21421680
Divisors of 21421680
- Number of divisors d(n): 160
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 41 42 48 56 60 70 80 82 84 105 112 120 123 140 164 168 205 210 240 246 280 287 311 328 336 410 420 492 560 574 615 622 656 820 840 861 933 984 1148 1230 1244 1435 1555 1640 1680 1722 1866 1968 2177 2296 2460 2488 2870 3110 3280 3444 3732 4305 4354 4592 4665 4920 4976 5740 6220 6531 6888 7464 8610 8708 9330 9840 10885 11480 12440 12751 13062 13776 14928 17220 17416 18660 21770 22960 24880 25502 26124 32655 34440 34832 37320 38253 43540 51004 52248 63755 65310 68880 74640 76506 87080 89257 102008 104496 127510 130620 153012 174160 178514 191265 204016 255020 261240 267771 306024 357028 382530 446285 510040 522480 535542 612048 714056 765060 892570 1020080 1071084 1338855 1428112 1530120 1785140 2142168 2677710 3060240 3570280 4284336 5355420 7140560 10710840 21421680
- Sum of all divisors σ(n): 77995008
- Sum of proper divisors (its aliquot sum) s(n): 56573328
- 21421680 is an abundant number, because the sum of its proper divisors (56573328) is greater than itself. Its abundance is 35151648
Bases of 21421680
- Binary: 10100011011011110011100002
- Hexadecimal: 0x146DE70
- Base-36: CR52O
Squares and roots of 21421680
- 21421680 squared (214216802) is 458888374022400
- 21421680 cubed (214216803) is 9830159904028165632000
-
The
square root of 21421680 is 4628.3560796465 -
The
cube root of 21421680 is 277.7268334427
Scales and comparisons
How big is 21421680?- 21,421,680 seconds is equal to 35 weeks, 2 days, 22 hours, 28 minutes.
-
To count from 1 to 21,421,680 would take you about twenty-one 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 21421680 cubic inches would be around 23.1 feet tall.
Recreational maths with 21421680
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 21421680 - Facts about the integer". Numbermatics.com. 2024. Web. 15 May 2024.
APA style:
Numbermatics. (2024). Number 21421680 - Facts about the integer. Retrieved 15 May 2024, from https://numbermatics.com/n/21421680/
Chicago style:
Numbermatics. 2024. "Number 21421680 - Facts about the integer". https://numbermatics.com/n/21421680/
The information we have on file for 21421680 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 21421680, math, Factors of 21421680, curriculum, school, college, exams, university, Prime factorization of 21421680, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred twenty-one thousand, six hundred eighty.