21084768
21,084,768 is an even composite number composed of four prime numbers multiplied together.
21084768 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21084768:
25 × 32 × 179 × 409
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 179 × 409)See below for interesting mathematical facts about the number 21084768 from the Numbermatics database.
Names of 21084768
- Cardinal: 21084768 can be written as Twenty-one million, eighty-four thousand, seven hundred sixty-eight.
Scientific notation
- Scientific notation: 2.1084768 × 107
Factors of 21084768
Divisors of 21084768
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 179 288 358 409 537 716 818 1074 1227 1432 1611 1636 2148 2454 2864 3222 3272 3681 4296 4908 5728 6444 6544 7362 8592 9816 12888 13088 14724 17184 19632 25776 29448 39264 51552 58896 73211 117792 146422 219633 292844 439266 585688 658899 878532 1171376 1317798 1757064 2342752 2635596 3514128 5271192 7028256 10542384 21084768
- Sum of all divisors σ(n): 60442200
- Sum of proper divisors (its aliquot sum) s(n): 39357432
- 21084768 is an abundant number, because the sum of its proper divisors (39357432) is greater than itself. Its abundance is 18272664
Bases of 21084768
- Binary: 10100000110111010011000002
- Hexadecimal: 0x141BA60
- Base-36: CJX40
Squares and roots of 21084768
- 21084768 squared (210847682) is 444567441613824
- 21084768 cubed (210847683) is 9373601366781024632832
-
The
square root of 21084768 is 4591.8153272971 -
The
cube root of 21084768 is 276.2631390869
Scales and comparisons
How big is 21084768?- 21,084,768 seconds is equal to 34 weeks, 6 days, 52 minutes, 48 seconds.
-
To count from 1 to 21,084,768 would take you about two days!
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 21084768 cubic inches would be around 23 feet tall.
Recreational maths with 21084768
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The information we have on file for 21084768 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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