20809984
20,809,984 is an even composite number composed of three prime numbers multiplied together.
20809984 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 20809984:
28 × 133 × 37
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13 × 13 × 37)See below for interesting mathematical facts about the number 20809984 from the Numbermatics database.
Names of 20809984
- Cardinal: 20809984 can be written as Twenty million, eight hundred nine thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 2.0809984 × 107
Factors of 20809984
Divisors of 20809984
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 8 13 16 26 32 37 52 64 74 104 128 148 169 208 256 296 338 416 481 592 676 832 962 1184 1352 1664 1924 2197 2368 2704 3328 3848 4394 4736 5408 6253 7696 8788 9472 10816 12506 15392 17576 21632 25012 30784 35152 43264 50024 61568 70304 81289 100048 123136 140608 162578 200096 281216 325156 400192 562432 650312 800384 1300624 1600768 2601248 5202496 10404992 20809984
- Sum of all divisors σ(n): 46214840
- Sum of proper divisors (its aliquot sum) s(n): 25404856
- 20809984 is an abundant number, because the sum of its proper divisors (25404856) is greater than itself. Its abundance is 4594872
Bases of 20809984
- Binary: 10011110110001001000000002
- Hexadecimal: 0x13D8900
- Base-36: CE134
Squares and roots of 20809984
- 20809984 squared (208099842) is 433055434080256
- 20809984 cubed (208099843) is 9011876654323182075904
-
The
square root of 20809984 is 4561.7961374879 -
The
cube root of 20809984 is 275.0577685801
Scales and comparisons
How big is 20809984?- 20,809,984 seconds is equal to 34 weeks, 2 days, 20 hours, 33 minutes, 4 seconds.
-
To count from 1 to 20,809,984 would take you about fifty-one 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 20809984 cubic inches would be around 22.9 feet tall.
Recreational maths with 20809984
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The information we have on file for 20809984 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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