21320820
21,320,820 is an even composite number composed of five prime numbers multiplied together.
21320820 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21320820:
22 × 35 × 5 × 41 × 107
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 41 × 107)See below for interesting mathematical facts about the number 21320820 from the Numbermatics database.
Names of 21320820
- Cardinal: 21320820 can be written as Twenty-one million, three hundred twenty thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.132082 × 107
Factors of 21320820
Divisors of 21320820
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 41 45 54 60 81 82 90 107 108 123 135 162 164 180 205 214 243 246 270 321 324 369 405 410 428 486 492 535 540 615 642 738 810 820 963 972 1070 1107 1215 1230 1284 1476 1605 1620 1845 1926 2140 2214 2430 2460 2889 3210 3321 3690 3852 4387 4428 4815 4860 5535 5778 6420 6642 7380 8667 8774 9630 9963 11070 11556 13161 13284 14445 16605 17334 17548 19260 19926 21935 22140 26001 26322 28890 33210 34668 39483 39852 43335 43870 49815 52002 52644 57780 65805 66420 78966 86670 87740 99630 104004 118449 130005 131610 157932 173340 197415 199260 236898 260010 263220 355347 394830 473796 520020 592245 710694 789660 1066041 1184490 1421388 1776735 2132082 2368980 3553470 4264164 5330205 7106940 10660410 21320820
- Sum of all divisors σ(n): 69346368
- Sum of proper divisors (its aliquot sum) s(n): 48025548
- 21320820 is an abundant number, because the sum of its proper divisors (48025548) is greater than itself. Its abundance is 26704728
Bases of 21320820
- Binary: 10100010101010100011101002
- Hexadecimal: 0x1455474
- Base-36: COZ90
Squares and roots of 21320820
- 21320820 squared (213208202) is 454577365472400
- 21320820 cubed (213208203) is 9691962185311255368000
-
The
square root of 21320820 is 4617.4473467489 -
The
cube root of 21320820 is 277.2902725047
Scales and comparisons
How big is 21320820?- 21,320,820 seconds is equal to 35 weeks, 1 day, 18 hours, 27 minutes.
-
To count from 1 to 21,320,820 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 21320820 cubic inches would be around 23.1 feet tall.
Recreational maths with 21320820
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 21320820 - Facts about the integer". Numbermatics.com. 2024. Web. 11 May 2024.
APA style:
Numbermatics. (2024). Number 21320820 - Facts about the integer. Retrieved 11 May 2024, from https://numbermatics.com/n/21320820/
Chicago style:
Numbermatics. 2024. "Number 21320820 - Facts about the integer". https://numbermatics.com/n/21320820/
The information we have on file for 21320820 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 21320820, math, Factors of 21320820, curriculum, school, college, exams, university, Prime factorization of 21320820, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred twenty thousand, eight hundred twenty.