28707140
28,707,140 is an even composite number composed of five prime numbers multiplied together.
28707140 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 28707140:
22 × 5 × 72 × 11 × 2663
(2 × 2 × 5 × 7 × 7 × 11 × 2663)See below for interesting mathematical facts about the number 28707140 from the Numbermatics database.
Names of 28707140
- Cardinal: 28707140 can be written as Twenty-eight million, seven hundred seven thousand, one hundred forty.
Scientific notation
- Scientific notation: 2.870714 × 107
Factors of 28707140
Divisors of 28707140
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 5 7 10 11 14 20 22 28 35 44 49 55 70 77 98 110 140 154 196 220 245 308 385 490 539 770 980 1078 1540 2156 2663 2695 5326 5390 10652 10780 13315 18641 26630 29293 37282 53260 58586 74564 93205 117172 130487 146465 186410 205051 260974 292930 372820 410102 521948 585860 652435 820204 1025255 1304870 1435357 2050510 2609740 2870714 4101020 5741428 7176785 14353570 28707140
- Sum of all divisors σ(n): 76531392
- Sum of proper divisors (its aliquot sum) s(n): 47824252
- 28707140 is an abundant number, because the sum of its proper divisors (47824252) is greater than itself. Its abundance is 19117112
Bases of 28707140
- Binary: 11011011000001001010001002
- Hexadecimal: 0x1B60944
- Base-36: H3AKK
Squares and roots of 28707140
- 28707140 squared (287071402) is 824099886979600
- 28707140 cubed (287071403) is 23657550829507554344000
-
The
square root of 28707140 is 5357.9044411039 -
The
cube root of 28707140 is 306.1939761465
Scales and comparisons
How big is 28707140?- 28,707,140 seconds is equal to 47 weeks, 3 days, 6 hours, 12 minutes, 20 seconds.
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To count from 1 to 28,707,140 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 28707140 cubic inches would be around 25.5 feet tall.
Recreational maths with 28707140
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The information we have on file for 28707140 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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