2161728
2,161,728 is an even composite number composed of three prime numbers multiplied together.
2161728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 2161728:
26 × 35 × 139
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 139)See below for interesting mathematical facts about the number 2161728 from the Numbermatics database.
Names of 2161728
- Cardinal: 2161728 can be written as Two million, one hundred sixty-one thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.161728 × 106
Factors of 2161728
Divisors of 2161728
- Number of divisors d(n): 84
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 139 144 162 192 216 243 278 288 324 417 432 486 556 576 648 834 864 972 1112 1251 1296 1668 1728 1944 2224 2502 2592 3336 3753 3888 4448 5004 5184 6672 7506 7776 8896 10008 11259 13344 15012 15552 20016 22518 26688 30024 33777 40032 45036 60048 67554 80064 90072 120096 135108 180144 240192 270216 360288 540432 720576 1080864 2161728
- Sum of all divisors σ(n): 6471920
- Sum of proper divisors (its aliquot sum) s(n): 4310192
- 2161728 is an abundant number, because the sum of its proper divisors (4310192) is greater than itself. Its abundance is 2148464
Bases of 2161728
- Binary: 10000011111100010000002
- Hexadecimal: 0x20FC40
- Base-36: 1AC00
Squares and roots of 2161728
- 2161728 squared (21617282) is 4673067945984
- 2161728 cubed (21617283) is 10101901824736100352
-
The
square root of 2161728 is 1470.2816056797 -
The
cube root of 2161728 is 129.3005431687
Scales and comparisons
How big is 2161728?- 2,161,728 seconds is equal to 3 weeks, 4 days, 28 minutes, 48 seconds.
-
To count from 1 to 2,161,728 would take you about five 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 2161728 cubic inches would be around 10.8 feet tall.
Recreational maths with 2161728
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The information we have on file for 2161728 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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