81427120
81,427,120 is an even composite number composed of four prime numbers multiplied together.
81427120 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 81427120:
24 × 5 × 732 × 191
(2 × 2 × 2 × 2 × 5 × 73 × 73 × 191)See below for interesting mathematical facts about the number 81427120 from the Numbermatics database.
Names of 81427120
- Cardinal: 81427120 can be written as Eighty-one million, four hundred twenty-seven thousand, one hundred twenty.
Scientific notation
- Scientific notation: 8.142712 × 107
Factors of 81427120
Divisors of 81427120
- Number of divisors d(n): 60
-
Complete list of divisors:
1 2 4 5 8 10 16 20 40 73 80 146 191 292 365 382 584 730 764 955 1168 1460 1528 1910 2920 3056 3820 5329 5840 7640 10658 13943 15280 21316 26645 27886 42632 53290 55772 69715 85264 106580 111544 139430 213160 223088 278860 426320 557720 1017839 1115440 2035678 4071356 5089195 8142712 10178390 16285424 20356780 40713560 81427120
- Sum of all divisors σ(n): 192951936
- Sum of proper divisors (its aliquot sum) s(n): 111524816
- 81427120 is an abundant number, because the sum of its proper divisors (111524816) is greater than itself. Its abundance is 30097696
Bases of 81427120
- Binary: 1001101101001111010101100002
- Hexadecimal: 0x4DA7AB0
- Base-36: 1CH9KG
Squares and roots of 81427120
- 81427120 squared (814271202) is 6630375871494400
- 81427120 cubed (814271203) is 539892411733279088128000
-
The
square root of 81427120 is 9023.6976899717 -
The
cube root of 81427120 is 433.4340489107
Scales and comparisons
How big is 81427120?- 81,427,120 seconds is equal to 2 years, 30 weeks, 4 days, 10 hours, 38 minutes, 40 seconds.
-
To count from 1 to 81,427,120 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 81427120 cubic inches would be around 36.1 feet tall.
Recreational maths with 81427120
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The information we have on file for 81427120 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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