20479890
20,479,890 is an even composite number composed of six prime numbers multiplied together.
20479890 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 20479890:
2 × 3 × 5 × 23 × 67 × 443
See below for interesting mathematical facts about the number 20479890 from the Numbermatics database.
Names of 20479890
- Cardinal: 20479890 can be written as Twenty million, four hundred seventy-nine thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 2.047989 × 107
Factors of 20479890
Divisors of 20479890
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 10 15 23 30 46 67 69 115 134 138 201 230 335 345 402 443 670 690 886 1005 1329 1541 2010 2215 2658 3082 4430 4623 6645 7705 9246 10189 13290 15410 20378 23115 29681 30567 46230 50945 59362 61134 89043 101890 148405 152835 178086 296810 305670 445215 682663 890430 1365326 2047989 3413315 4095978 6826630 10239945 20479890
- Sum of all divisors σ(n): 52171776
- Sum of proper divisors (its aliquot sum) s(n): 31691886
- 20479890 is an abundant number, because the sum of its proper divisors (31691886) is greater than itself. Its abundance is 11211996
Bases of 20479890
- Binary: 10011100001111111100100102
- Hexadecimal: 0x1387F92
- Base-36: C6YDU
Squares and roots of 20479890
- 20479890 squared (204798902) is 419425894412100
- 20479890 cubed (204798903) is 8589796180711422669000
-
The
square root of 20479890 is 4525.4712461797 -
The
cube root of 20479890 is 273.5956616305
Scales and comparisons
How big is 20479890?- 20,479,890 seconds is equal to 33 weeks, 6 days, 51 minutes, 30 seconds.
-
To count from 1 to 20,479,890 would take you about fifty 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 20479890 cubic inches would be around 22.8 feet tall.
Recreational maths with 20479890
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The information we have on file for 20479890 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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