1215840
1,215,840 is an even composite number composed of five prime numbers multiplied together.
1215840 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 1215840:
25 × 3 × 5 × 17 × 149
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 17 × 149)See below for interesting mathematical facts about the number 1215840 from the Numbermatics database.
Names of 1215840
- Cardinal: 1215840 can be written as One million, two hundred fifteen thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.21584 × 106
Factors of 1215840
Divisors of 1215840
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 149 160 170 204 240 255 272 298 340 408 447 480 510 544 596 680 745 816 894 1020 1192 1360 1490 1632 1788 2040 2235 2384 2533 2720 2980 3576 4080 4470 4768 5066 5960 7152 7599 8160 8940 10132 11920 12665 14304 15198 17880 20264 23840 25330 30396 35760 37995 40528 50660 60792 71520 75990 81056 101320 121584 151980 202640 243168 303960 405280 607920 1215840
- Sum of all divisors σ(n): 4082400
- Sum of proper divisors (its aliquot sum) s(n): 2866560
- 1215840 is an abundant number, because the sum of its proper divisors (2866560) is greater than itself. Its abundance is 1650720
Bases of 1215840
- Binary: 1001010001101011000002
- Hexadecimal: 0x128D60
- Base-36: Q25C
Squares and roots of 1215840
- 1215840 squared (12158402) is 1478266905600
- 1215840 cubed (12158403) is 1797336034504704000
-
The
square root of 1215840 is 1102.6513501557 -
The
cube root of 1215840 is 106.7313843369
Scales and comparisons
How big is 1215840?- 1,215,840 seconds is equal to 2 weeks, 1 hour, 44 minutes.
-
To count from 1 to 1,215,840 would take you about three 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 1215840 cubic inches would be around 8.9 feet tall.
Recreational maths with 1215840
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 1215840 - Facts about the integer". Numbermatics.com. 2024. Web. 15 May 2024.
APA style:
Numbermatics. (2024). Number 1215840 - Facts about the integer. Retrieved 15 May 2024, from https://numbermatics.com/n/1215840/
Chicago style:
Numbermatics. 2024. "Number 1215840 - Facts about the integer". https://numbermatics.com/n/1215840/
The information we have on file for 1215840 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 1215840, math, Factors of 1215840, curriculum, school, college, exams, university, Prime factorization of 1215840, STEM, science, technology, engineering, physics, economics, calculator, one million, two hundred fifteen thousand, eight hundred forty.