20825728
20,825,728 is an even composite number composed of four prime numbers multiplied together.
20825728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 20825728:
27 × 7 × 11 × 2113
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 11 × 2113)See below for interesting mathematical facts about the number 20825728 from the Numbermatics database.
Names of 20825728
- Cardinal: 20825728 can be written as Twenty million, eight hundred twenty-five thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.0825728 × 107
Factors of 20825728
Divisors of 20825728
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 128 154 176 224 308 352 448 616 704 896 1232 1408 2113 2464 4226 4928 8452 9856 14791 16904 23243 29582 33808 46486 59164 67616 92972 118328 135232 162701 185944 236656 270464 325402 371888 473312 650804 743776 946624 1301608 1487552 1893248 2603216 2975104 5206432 10412864 20825728
- Sum of all divisors σ(n): 51750720
- Sum of proper divisors (its aliquot sum) s(n): 30924992
- 20825728 is an abundant number, because the sum of its proper divisors (30924992) is greater than itself. Its abundance is 10099264
Bases of 20825728
- Binary: 10011110111000110100000002
- Hexadecimal: 0x13DC680
- Base-36: CED8G
Squares and roots of 20825728
- 20825728 squared (208257282) is 433710946729984
- 20825728 cubed (208257283) is 9032346207221136228352
-
The
square root of 20825728 is 4563.5214473037 -
The
cube root of 20825728 is 275.1271169895
Scales and comparisons
How big is 20825728?- 20,825,728 seconds is equal to 34 weeks, 3 days, 55 minutes, 28 seconds.
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To count from 1 to 20,825,728 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 20825728 cubic inches would be around 22.9 feet tall.
Recreational maths with 20825728
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The information we have on file for 20825728 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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