81329400
81,329,400 is an even composite number composed of four prime numbers multiplied together.
81329400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 81329400:
23 × 33 × 52 × 15061
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 15061)See below for interesting mathematical facts about the number 81329400 from the Numbermatics database.
Names of 81329400
- Cardinal: 81329400 can be written as Eighty-one million, three hundred twenty-nine thousand, four hundred.
Scientific notation
- Scientific notation: 8.13294 × 107
Factors of 81329400
Divisors of 81329400
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 90 100 108 120 135 150 180 200 216 225 270 300 360 450 540 600 675 900 1080 1350 1800 2700 5400 15061 30122 45183 60244 75305 90366 120488 135549 150610 180732 225915 271098 301220 361464 376525 406647 451830 542196 602440 677745 753050 813294 903660 1084392 1129575 1355490 1506100 1626588 1807320 2033235 2259150 2710980 3012200 3253176 3388725 4066470 4518300 5421960 6777450 8132940 9036600 10166175 13554900 16265880 20332350 27109800 40664700 81329400
- Sum of all divisors σ(n): 280153200
- Sum of proper divisors (its aliquot sum) s(n): 198823800
- 81329400 is an abundant number, because the sum of its proper divisors (198823800) is greater than itself. Its abundance is 117494400
Bases of 81329400
- Binary: 1001101100011111100111110002
- Hexadecimal: 0x4D8FCF8
- Base-36: 1CF660
Squares and roots of 81329400
- 81329400 squared (813294002) is 6614471304360000
- 81329400 cubed (813294003) is 537950982500816184000000
-
The
square root of 81329400 is 9018.2814327343 -
The
cube root of 81329400 is 433.2605926555
Scales and comparisons
How big is 81329400?- 81,329,400 seconds is equal to 2 years, 30 weeks, 3 days, 7 hours, 30 minutes.
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To count from 1 to 81,329,400 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 81329400 cubic inches would be around 36.1 feet tall.
Recreational maths with 81329400
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The information we have on file for 81329400 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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