728438720
728,438,720 is an even composite number composed of four prime numbers multiplied together.
728438720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.
Prime factorization of 728438720:
26 × 5 × 19 × 119809
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 119809)See below for interesting mathematical facts about the number 728438720 from the Numbermatics database.
Names of 728438720
- Cardinal: 728438720 can be written as Seven hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 7.2843872 × 108
Factors of 728438720
Divisors of 728438720
- Number of divisors d(n): 56
-
Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 190 304 320 380 608 760 1216 1520 3040 6080 119809 239618 479236 599045 958472 1198090 1916944 2276371 2396180 3833888 4552742 4792360 7667776 9105484 9584720 11381855 18210968 19169440 22763710 36421936 38338880 45527420 72843872 91054840 145687744 182109680 364219360 728438720
- Sum of all divisors σ(n): 1825904400
- Sum of proper divisors (its aliquot sum) s(n): 1097465680
- 728438720 is an abundant number, because the sum of its proper divisors (1097465680) is greater than itself. Its abundance is 369026960
Bases of 728438720
- Binary: 1010110110101100010111110000002
- Hexadecimal: 0x2B6B17C0
- Base-36: C1OYWW
Squares and roots of 728438720
- 728438720 squared (7284387202) is 530622968795238400
- 728438720 cubed (7284387203) is 386526316191803402190848000
-
The
square root of 728438720 is 26989.6039244743 -
The
cube root of 728438720 is 899.7689612713
Scales and comparisons
How big is 728438720?- 728,438,720 seconds is equal to 23 years, 8 weeks, 3 days, 5 minutes, 20 seconds.
-
To count from 1 to 728,438,720 would take you about thirty-four years!
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 728438720 cubic inches would be around 75 feet tall.
Recreational maths with 728438720
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 728438720 - Facts about the integer". Numbermatics.com. 2024. Web. 9 May 2024.
APA style:
Numbermatics. (2024). Number 728438720 - Facts about the integer. Retrieved 9 May 2024, from https://numbermatics.com/n/728438720/
Chicago style:
Numbermatics. 2024. "Number 728438720 - Facts about the integer". https://numbermatics.com/n/728438720/
The information we have on file for 728438720 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 728438720, math, Factors of 728438720, curriculum, school, college, exams, university, Prime factorization of 728438720, STEM, science, technology, engineering, physics, economics, calculator, seven hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred twenty.