428728860
428,728,860 is an even composite number composed of five prime numbers multiplied together.
428728860 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 428728860:
22 × 32 × 5 × 7 × 340261
(2 × 2 × 3 × 3 × 5 × 7 × 340261)See below for interesting mathematical facts about the number 428728860 from the Numbermatics database.
Names of 428728860
- Cardinal: 428728860 can be written as Four hundred twenty-eight million, seven hundred twenty-eight thousand, eight hundred sixty.
Scientific notation
- Scientific notation: 4.2872886 × 108
Factors of 428728860
Divisors of 428728860
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 340261 680522 1020783 1361044 1701305 2041566 2381827 3062349 3402610 4083132 4763654 5103915 6124698 6805220 7145481 9527308 10207830 11909135 12249396 14290962 15311745 20415660 21436443 23818270 28581924 30623490 35727405 42872886 47636540 61246980 71454810 85745772 107182215 142909620 214364430 428728860
- Sum of all divisors σ(n): 1486264416
- Sum of proper divisors (its aliquot sum) s(n): 1057535556
- 428728860 is an abundant number, because the sum of its proper divisors (1057535556) is greater than itself. Its abundance is 628806696
Bases of 428728860
- Binary: 110011000110111100010000111002
- Hexadecimal: 0x198DE21C
- Base-36: 7395B0
Squares and roots of 428728860
- 428728860 squared (4287288602) is 183808435396899600
- 428728860 cubed (4287288603) is 78803980966096413042456000
-
The
square root of 428728860 is 20705.7687613863 -
The
cube root of 428728860 is 754.0397481783
Scales and comparisons
How big is 428728860?- 428,728,860 seconds is equal to 13 years, 32 weeks, 6 days, 3 hours, 21 minutes.
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To count from 1 to 428,728,860 would take you about twenty years!
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 428728860 cubic inches would be around 62.8 feet tall.
Recreational maths with 428728860
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The information we have on file for 428728860 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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