28128438
28,128,438 is an even composite number composed of five prime numbers multiplied together.
28128438 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 28128438:
2 × 33 × 13 × 17 × 2357
(2 × 3 × 3 × 3 × 13 × 17 × 2357)See below for interesting mathematical facts about the number 28128438 from the Numbermatics database.
Names of 28128438
- Cardinal: 28128438 can be written as Twenty-eight million, one hundred twenty-eight thousand, four hundred thirty-eight.
Scientific notation
- Scientific notation: 2.8128438 × 107
Factors of 28128438
Divisors of 28128438
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 6 9 13 17 18 26 27 34 39 51 54 78 102 117 153 221 234 306 351 442 459 663 702 918 1326 1989 2357 3978 4714 5967 7071 11934 14142 21213 30641 40069 42426 61282 63639 80138 91923 120207 127278 183846 240414 275769 360621 520897 551538 721242 827307 1041794 1081863 1562691 1654614 2163726 3125382 4688073 9376146 14064219 28128438
- Sum of all divisors σ(n): 71305920
- Sum of proper divisors (its aliquot sum) s(n): 43177482
- 28128438 is an abundant number, because the sum of its proper divisors (43177482) is greater than itself. Its abundance is 15049044
Bases of 28128438
- Binary: 11010110100110100101101102
- Hexadecimal: 0x1AD34B6
- Base-36: GQW1I
Squares and roots of 28128438
- 28128438 squared (281284382) is 791209024319844
- 28128438 cubed (281284383) is 22255473985621224123672
-
The
square root of 28128438 is 5303.6249867425 -
The
cube root of 28128438 is 304.1224907465
Scales and comparisons
How big is 28128438?- 28,128,438 seconds is equal to 46 weeks, 3 days, 13 hours, 27 minutes, 18 seconds.
-
To count from 1 to 28,128,438 would take you about seventeen 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 28128438 cubic inches would be around 25.3 feet tall.
Recreational maths with 28128438
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 28128438 - Facts about the integer". Numbermatics.com. 2024. Web. 27 May 2024.
APA style:
Numbermatics. (2024). Number 28128438 - Facts about the integer. Retrieved 27 May 2024, from https://numbermatics.com/n/28128438/
Chicago style:
Numbermatics. 2024. "Number 28128438 - Facts about the integer". https://numbermatics.com/n/28128438/
The information we have on file for 28128438 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 28128438, math, Factors of 28128438, curriculum, school, college, exams, university, Prime factorization of 28128438, STEM, science, technology, engineering, physics, economics, calculator, twenty-eight million, one hundred twenty-eight thousand, four hundred thirty-eight.