138721284
138,721,284 is an even composite number composed of four prime numbers multiplied together.
138721284 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-one divisors.
Prime factorization of 138721284:
22 × 32 × 132 × 1512
(2 × 2 × 3 × 3 × 13 × 13 × 151 × 151)See below for interesting mathematical facts about the number 138721284 from the Numbermatics database.
Names of 138721284
- Cardinal: 138721284 can be written as One hundred thirty-eight million, seven hundred twenty-one thousand, two hundred eighty-four.
Scientific notation
- Scientific notation: 1.38721284 × 108
Factors of 138721284
Divisors of 138721284
- Number of divisors d(n): 81
-
Complete list of divisors:
1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 151 156 169 234 302 338 453 468 507 604 676 906 1014 1359 1521 1812 1963 2028 2718 3042 3926 5436 5889 6084 7852 11778 17667 22801 23556 25519 35334 45602 51038 68403 70668 76557 91204 102076 136806 153114 205209 229671 273612 296413 306228 410418 459342 592826 820836 889239 918684 1185652 1778478 2667717 3556956 3853369 5335434 7706738 10670868 11560107 15413476 23120214 34680321 46240428 69360642 138721284
- Sum of all divisors σ(n): 382236309
- Sum of proper divisors (its aliquot sum) s(n): 243515025
- 138721284 is an abundant number, because the sum of its proper divisors (243515025) is greater than itself. Its abundance is 104793741
Bases of 138721284
- Binary: 10000100010010111000000001002
- Hexadecimal: 0x844B804
- Base-36: 2ALA10
Squares and roots of 138721284
- 138721284 squared (1387212842) is 19243594634608656
- 138721284 cubed (1387212843) is 2669496156488423597834304
-
138721284 is a
perfect square number . Itssquare root is 11778 -
The
cube root of 138721284 is 517.6636855309
Scales and comparisons
How big is 138721284?- 138,721,284 seconds is equal to 4 years, 21 weeks, 2 days, 13 hours, 41 minutes, 24 seconds.
-
To count from 1 to 138,721,284 would take you about six 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 138721284 cubic inches would be around 43.1 feet tall.
Recreational maths with 138721284
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 138721284 - Facts about the integer". Numbermatics.com. 2024. Web. 3 May 2024.
APA style:
Numbermatics. (2024). Number 138721284 - Facts about the integer. Retrieved 3 May 2024, from https://numbermatics.com/n/138721284/
Chicago style:
Numbermatics. 2024. "Number 138721284 - Facts about the integer". https://numbermatics.com/n/138721284/
The information we have on file for 138721284 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 138721284, math, Factors of 138721284, curriculum, school, college, exams, university, Prime factorization of 138721284, STEM, science, technology, engineering, physics, economics, calculator, one hundred thirty-eight million, seven hundred twenty-one thousand, two hundred eighty-four.