1285440
1,285,440 is an even composite number composed of five prime numbers multiplied together.
1285440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 1285440:
26 × 3 × 5 × 13 × 103
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 103)See below for interesting mathematical facts about the number 1285440 from the Numbermatics database.
Names of 1285440
- Cardinal: 1285440 can be written as One million, two hundred eighty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.28544 × 106
Factors of 1285440
Divisors of 1285440
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 103 104 120 130 156 160 192 195 206 208 240 260 309 312 320 390 412 416 480 515 520 618 624 780 824 832 960 1030 1040 1236 1248 1339 1545 1560 1648 2060 2080 2472 2496 2678 3090 3120 3296 4017 4120 4160 4944 5356 6180 6240 6592 6695 8034 8240 9888 10712 12360 12480 13390 16068 16480 19776 20085 21424 24720 26780 32136 32960 40170 42848 49440 53560 64272 80340 85696 98880 107120 128544 160680 214240 257088 321360 428480 642720 1285440
- Sum of all divisors σ(n): 4437888
- Sum of proper divisors (its aliquot sum) s(n): 3152448
- 1285440 is an abundant number, because the sum of its proper divisors (3152448) is greater than itself. Its abundance is 1867008
Bases of 1285440
- Binary: 1001110011101010000002
- Hexadecimal: 0x139D40
- Base-36: RJUO
Squares and roots of 1285440
- 1285440 squared (12854402) is 1652355993600
- 1285440 cubed (12854403) is 2124004488413184000
-
The
square root of 1285440 is 1133.7724639451 -
The
cube root of 1285440 is 108.7303042677
Scales and comparisons
How big is 1285440?- 1,285,440 seconds is equal to 2 weeks, 21 hours, 4 minutes.
-
To count from 1 to 1,285,440 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 1285440 cubic inches would be around 9.1 feet tall.
Recreational maths with 1285440
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 1285440 - Facts about the integer". Numbermatics.com. 2024. Web. 27 April 2024.
APA style:
Numbermatics. (2024). Number 1285440 - Facts about the integer. Retrieved 27 April 2024, from https://numbermatics.com/n/1285440/
Chicago style:
Numbermatics. 2024. "Number 1285440 - Facts about the integer". https://numbermatics.com/n/1285440/
The information we have on file for 1285440 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 1285440, math, Factors of 1285440, curriculum, school, college, exams, university, Prime factorization of 1285440, STEM, science, technology, engineering, physics, economics, calculator, one million, two hundred eighty-five thousand, four hundred forty.