20728440
20,728,440 is an even composite number composed of five prime numbers multiplied together.
20728440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 20728440:
23 × 33 × 5 × 17 × 1129
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 17 × 1129)See below for interesting mathematical facts about the number 20728440 from the Numbermatics database.
Names of 20728440
- Cardinal: 20728440 can be written as Twenty million, seven hundred twenty-eight thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.072844 × 107
Factors of 20728440
Divisors of 20728440
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 34 36 40 45 51 54 60 68 72 85 90 102 108 120 135 136 153 170 180 204 216 255 270 306 340 360 408 459 510 540 612 680 765 918 1020 1080 1129 1224 1530 1836 2040 2258 2295 3060 3387 3672 4516 4590 5645 6120 6774 9032 9180 10161 11290 13548 16935 18360 19193 20322 22580 27096 30483 33870 38386 40644 45160 50805 57579 60966 67740 76772 81288 95965 101610 115158 121932 135480 152415 153544 172737 191930 203220 230316 243864 287895 304830 345474 383860 406440 460632 518211 575790 609660 690948 767720 863685 1036422 1151580 1219320 1381896 1727370 2072844 2303160 2591055 3454740 4145688 5182110 6909480 10364220 20728440
- Sum of all divisors σ(n): 73224000
- Sum of proper divisors (its aliquot sum) s(n): 52495560
- 20728440 is an abundant number, because the sum of its proper divisors (52495560) is greater than itself. Its abundance is 31767120
Bases of 20728440
- Binary: 10011110001001010011110002
- Hexadecimal: 0x13C4A78
- Base-36: CCA60
Squares and roots of 20728440
- 20728440 squared (207284402) is 429668224833600
- 20728440 cubed (207284403) is 8906352018369787584000
-
The
square root of 20728440 is 4552.8496570829 -
The
cube root of 20728440 is 274.6980266557
Scales and comparisons
How big is 20728440?- 20,728,440 seconds is equal to 34 weeks, 1 day, 21 hours, 54 minutes.
-
To count from 1 to 20,728,440 would take you about fifty-one weeks!
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 20728440 cubic inches would be around 22.9 feet tall.
Recreational maths with 20728440
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 20728440 - Facts about the integer". Numbermatics.com. 2024. Web. 5 May 2024.
APA style:
Numbermatics. (2024). Number 20728440 - Facts about the integer. Retrieved 5 May 2024, from https://numbermatics.com/n/20728440/
Chicago style:
Numbermatics. 2024. "Number 20728440 - Facts about the integer". https://numbermatics.com/n/20728440/
The information we have on file for 20728440 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 20728440, math, Factors of 20728440, curriculum, school, college, exams, university, Prime factorization of 20728440, STEM, science, technology, engineering, physics, economics, calculator, twenty million, seven hundred twenty-eight thousand, four hundred forty.