21520980
21,520,980 is an even composite number composed of six prime numbers multiplied together.
21520980 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21520980:
22 × 32 × 5 × 13 × 17 × 541
(2 × 2 × 3 × 3 × 5 × 13 × 17 × 541)See below for interesting mathematical facts about the number 21520980 from the Numbermatics database.
Names of 21520980
- Cardinal: 21520980 can be written as Twenty-one million, five hundred twenty thousand, nine hundred eighty.
Scientific notation
- Scientific notation: 2.152098 × 107
Factors of 21520980
Divisors of 21520980
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 30 34 36 39 45 51 52 60 65 68 78 85 90 102 117 130 153 156 170 180 195 204 221 234 255 260 306 340 390 442 468 510 541 585 612 663 765 780 884 1020 1082 1105 1170 1326 1530 1623 1989 2164 2210 2340 2652 2705 3060 3246 3315 3978 4420 4869 5410 6492 6630 7033 7956 8115 9197 9738 9945 10820 13260 14066 16230 18394 19476 19890 21099 24345 27591 28132 32460 35165 36788 39780 42198 45985 48690 55182 63297 70330 82773 84396 91970 97380 105495 110364 119561 126594 137955 140660 165546 183940 210990 239122 253188 275910 316485 331092 358683 413865 421980 478244 551820 597805 632970 717366 827730 1076049 1195610 1265940 1434732 1655460 1793415 2152098 2391220 3586830 4304196 5380245 7173660 10760490 21520980
- Sum of all divisors σ(n): 74574864
- Sum of proper divisors (its aliquot sum) s(n): 53053884
- 21520980 is an abundant number, because the sum of its proper divisors (53053884) is greater than itself. Its abundance is 31532904
Bases of 21520980
- Binary: 10100100001100010010101002
- Hexadecimal: 0x1486254
- Base-36: CT9P0
Squares and roots of 21520980
- 21520980 squared (215209802) is 463152580160400
- 21520980 cubed (215209803) is 9967497414580365192000
-
The
square root of 21520980 is 4639.0710276951 -
The
cube root of 21520980 is 278.1553054551
Scales and comparisons
How big is 21520980?- 21,520,980 seconds is equal to 35 weeks, 4 days, 2 hours, 3 minutes.
-
To count from 1 to 21,520,980 would take you about two 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 21520980 cubic inches would be around 23.2 feet tall.
Recreational maths with 21520980
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 21520980 - Facts about the integer". Numbermatics.com. 2024. Web. 5 May 2024.
APA style:
Numbermatics. (2024). Number 21520980 - Facts about the integer. Retrieved 5 May 2024, from https://numbermatics.com/n/21520980/
Chicago style:
Numbermatics. 2024. "Number 21520980 - Facts about the integer". https://numbermatics.com/n/21520980/
The information we have on file for 21520980 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 21520980, math, Factors of 21520980, curriculum, school, college, exams, university, Prime factorization of 21520980, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, five hundred twenty thousand, nine hundred eighty.