20728500
20,728,500 is an even composite number composed of five prime numbers multiplied together.
20728500 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 20728500:
22 × 3 × 53 × 13 × 1063
(2 × 2 × 3 × 5 × 5 × 5 × 13 × 1063)See below for interesting mathematical facts about the number 20728500 from the Numbermatics database.
Names of 20728500
- Cardinal: 20728500 can be written as Twenty million, seven hundred twenty-eight thousand, five hundred.
Scientific notation
- Scientific notation: 2.07285 × 107
Factors of 20728500
Divisors of 20728500
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 10 12 13 15 20 25 26 30 39 50 52 60 65 75 78 100 125 130 150 156 195 250 260 300 325 375 390 500 650 750 780 975 1063 1300 1500 1625 1950 2126 3189 3250 3900 4252 4875 5315 6378 6500 9750 10630 12756 13819 15945 19500 21260 26575 27638 31890 41457 53150 55276 63780 69095 79725 82914 106300 132875 138190 159450 165828 207285 265750 276380 318900 345475 398625 414570 531500 690950 797250 829140 1036425 1381900 1594500 1727375 2072850 3454750 4145700 5182125 6909500 10364250 20728500
- Sum of all divisors σ(n): 65065728
- Sum of proper divisors (its aliquot sum) s(n): 44337228
- 20728500 is an abundant number, because the sum of its proper divisors (44337228) is greater than itself. Its abundance is 23608728
Bases of 20728500
- Binary: 10011110001001010101101002
- Hexadecimal: 0x13C4AB4
- Base-36: CCA7O
Squares and roots of 20728500
- 20728500 squared (207285002) is 429670712250000
- 20728500 cubed (207285003) is 8906429358874125000000
-
The
square root of 20728500 is 4552.8562463579 -
The
cube root of 20728500 is 274.6982917001
Scales and comparisons
How big is 20728500?- 20,728,500 seconds is equal to 34 weeks, 1 day, 21 hours, 55 minutes.
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To count from 1 to 20,728,500 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 20728500 cubic inches would be around 22.9 feet tall.
Recreational maths with 20728500
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The information we have on file for 20728500 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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