28122900
28,122,900 is an even composite number composed of five prime numbers multiplied together.
28122900 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 28122900:
22 × 3 × 52 × 13 × 7211
(2 × 2 × 3 × 5 × 5 × 13 × 7211)See below for interesting mathematical facts about the number 28122900 from the Numbermatics database.
Names of 28122900
- Cardinal: 28122900 can be written as Twenty-eight million, one hundred twenty-two thousand, nine hundred.
Scientific notation
- Scientific notation: 2.81229 × 107
Factors of 28122900
Divisors of 28122900
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 10 12 13 15 20 25 26 30 39 50 52 60 65 75 78 100 130 150 156 195 260 300 325 390 650 780 975 1300 1950 3900 7211 14422 21633 28844 36055 43266 72110 86532 93743 108165 144220 180275 187486 216330 281229 360550 374972 432660 468715 540825 562458 721100 937430 1081650 1124916 1406145 1874860 2163300 2343575 2812290 4687150 5624580 7030725 9374300 14061450 28122900
- Sum of all divisors σ(n): 87640224
- Sum of proper divisors (its aliquot sum) s(n): 59517324
- 28122900 is an abundant number, because the sum of its proper divisors (59517324) is greater than itself. Its abundance is 31394424
Bases of 28122900
- Binary: 11010110100011111000101002
- Hexadecimal: 0x1AD1F14
- Base-36: GQRRO
Squares and roots of 28122900
- 28122900 squared (281229002) is 790897504410000
- 28122900 cubed (281229003) is 22242331426771989000000
-
The
square root of 28122900 is 5303.1028653045 -
The
cube root of 28122900 is 304.1025306277
Scales and comparisons
How big is 28122900?- 28,122,900 seconds is equal to 46 weeks, 3 days, 11 hours, 55 minutes.
-
To count from 1 to 28,122,900 would take you about seventeen 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 28122900 cubic inches would be around 25.3 feet tall.
Recreational maths with 28122900
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The information we have on file for 28122900 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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