21305520
21,305,520 is an even composite number composed of five prime numbers multiplied together.
21305520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21305520:
24 × 32 × 5 × 127 × 233
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 127 × 233)See below for interesting mathematical facts about the number 21305520 from the Numbermatics database.
Names of 21305520
- Cardinal: 21305520 can be written as Twenty-one million, three hundred five thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.130552 × 107
Factors of 21305520
Divisors of 21305520
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 127 144 180 233 240 254 360 381 466 508 635 699 720 762 932 1016 1143 1165 1270 1398 1524 1864 1905 2032 2097 2286 2330 2540 2796 3048 3495 3728 3810 4194 4572 4660 5080 5592 5715 6096 6990 7620 8388 9144 9320 10160 10485 11184 11430 13980 15240 16776 18288 18640 20970 22860 27960 29591 30480 33552 41940 45720 55920 59182 83880 88773 91440 118364 147955 167760 177546 236728 266319 295910 355092 443865 473456 532638 591820 710184 887730 1065276 1183640 1331595 1420368 1775460 2130552 2367280 2663190 3550920 4261104 5326380 7101840 10652760 21305520
- Sum of all divisors σ(n): 72423936
- Sum of proper divisors (its aliquot sum) s(n): 51118416
- 21305520 is an abundant number, because the sum of its proper divisors (51118416) is greater than itself. Its abundance is 29812896
Bases of 21305520
- Binary: 10100010100011000101100002
- Hexadecimal: 0x14518B0
- Base-36: CONG0
Squares and roots of 21305520
- 21305520 squared (213055202) is 453925182470400
- 21305520 cubed (213055203) is 9671112053626756608000
-
The
square root of 21305520 is 4615.7902898637 -
The
cube root of 21305520 is 277.2239280207
Scales and comparisons
How big is 21305520?- 21,305,520 seconds is equal to 35 weeks, 1 day, 14 hours, 12 minutes.
-
To count from 1 to 21,305,520 would take you about five 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 21305520 cubic inches would be around 23.1 feet tall.
Recreational maths with 21305520
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 21305520 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.
APA style:
Numbermatics. (2024). Number 21305520 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/21305520/
Chicago style:
Numbermatics. 2024. "Number 21305520 - Facts about the integer". https://numbermatics.com/n/21305520/
The information we have on file for 21305520 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 21305520, math, Factors of 21305520, curriculum, school, college, exams, university, Prime factorization of 21305520, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred five thousand, five hundred twenty.