81013230
81,013,230 is an even composite number composed of five prime numbers multiplied together.
81013230 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 81013230:
2 × 33 × 5 × 31 × 9679
(2 × 3 × 3 × 3 × 5 × 31 × 9679)See below for interesting mathematical facts about the number 81013230 from the Numbermatics database.
Names of 81013230
- Cardinal: 81013230 can be written as Eighty-one million, thirteen thousand, two hundred thirty.
Scientific notation
- Scientific notation: 8.101323 × 107
Factors of 81013230
Divisors of 81013230
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 31 45 54 62 90 93 135 155 186 270 279 310 465 558 837 930 1395 1674 2790 4185 8370 9679 19358 29037 48395 58074 87111 96790 145185 174222 261333 290370 300049 435555 522666 600098 871110 900147 1306665 1500245 1800294 2613330 2700441 3000490 4500735 5400882 8101323 9001470 13502205 16202646 27004410 40506615 81013230
- Sum of all divisors σ(n): 223027200
- Sum of proper divisors (its aliquot sum) s(n): 142013970
- 81013230 is an abundant number, because the sum of its proper divisors (142013970) is greater than itself. Its abundance is 61000740
Bases of 81013230
- Binary: 1001101010000101001111011102
- Hexadecimal: 0x4D429EE
- Base-36: 1C8E7I
Squares and roots of 81013230
- 81013230 squared (810132302) is 6563143435032900
- 81013230 cubed (810132303) is 531701448625310385267000
-
The
square root of 81013230 is 9000.7349699899 -
The
cube root of 81013230 is 432.6984265527
Scales and comparisons
How big is 81013230?- 81,013,230 seconds is equal to 2 years, 29 weeks, 6 days, 15 hours, 40 minutes, 30 seconds.
-
To count from 1 to 81,013,230 would take you about three 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 81013230 cubic inches would be around 36.1 feet tall.
Recreational maths with 81013230
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The information we have on file for 81013230 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!
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