28988700
28,988,700 is an even composite number composed of five prime numbers multiplied together.
28988700 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 28988700:
22 × 3 × 52 × 13 × 7433
(2 × 2 × 3 × 5 × 5 × 13 × 7433)See below for interesting mathematical facts about the number 28988700 from the Numbermatics database.
Names of 28988700
- Cardinal: 28988700 can be written as Twenty-eight million, nine hundred eighty-eight thousand, seven hundred.
Scientific notation
- Scientific notation: 2.89887 × 107
Factors of 28988700
Divisors of 28988700
- 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 7433 14866 22299 29732 37165 44598 74330 89196 96629 111495 148660 185825 193258 222990 289887 371650 386516 445980 483145 557475 579774 743300 966290 1114950 1159548 1449435 1932580 2229900 2415725 2898870 4831450 5797740 7247175 9662900 14494350 28988700
- Sum of all divisors σ(n): 90337968
- Sum of proper divisors (its aliquot sum) s(n): 61349268
- 28988700 is an abundant number, because the sum of its proper divisors (61349268) is greater than itself. Its abundance is 32360568
Bases of 28988700
- Binary: 11011101001010101000111002
- Hexadecimal: 0x1BA551C
- Base-36: H9BTO
Squares and roots of 28988700
- 28988700 squared (289887002) is 840344727690000
- 28988700 cubed (289887003) is 24360501207587103000000
-
The
square root of 28988700 is 5384.1155262495 -
The
cube root of 28988700 is 307.1917725797
Scales and comparisons
How big is 28988700?- 28,988,700 seconds is equal to 47 weeks, 6 days, 12 hours, 25 minutes.
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To count from 1 to 28,988,700 would take you about nineteen 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 28988700 cubic inches would be around 25.6 feet tall.
Recreational maths with 28988700
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The information we have on file for 28988700 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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