28391480
28,391,480 is an even composite number composed of five prime numbers multiplied together.
28391480 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 28391480:
23 × 5 × 13 × 71 × 769
(2 × 2 × 2 × 5 × 13 × 71 × 769)See below for interesting mathematical facts about the number 28391480 from the Numbermatics database.
Names of 28391480
- Cardinal: 28391480 can be written as Twenty-eight million, three hundred ninety-one thousand, four hundred eighty.
Scientific notation
- Scientific notation: 2.839148 × 107
Factors of 28391480
Divisors of 28391480
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 13 20 26 40 52 65 71 104 130 142 260 284 355 520 568 710 769 923 1420 1538 1846 2840 3076 3692 3845 4615 6152 7384 7690 9230 9997 15380 18460 19994 30760 36920 39988 49985 54599 79976 99970 109198 199940 218396 272995 399880 436792 545990 709787 1091980 1419574 2183960 2839148 3548935 5678296 7097870 14195740 28391480
- Sum of all divisors σ(n): 69854400
- Sum of proper divisors (its aliquot sum) s(n): 41462920
- 28391480 is an abundant number, because the sum of its proper divisors (41462920) is greater than itself. Its abundance is 13071440
Bases of 28391480
- Binary: 11011000100111000001110002
- Hexadecimal: 0x1B13838
- Base-36: GWJ08
Squares and roots of 28391480
- 28391480 squared (283914802) is 806076136590400
- 28391480 cubed (283914803) is 22885694510483609792000
-
The
square root of 28391480 is 5328.3656030719 -
The
cube root of 28391480 is 305.0675475227
Scales and comparisons
How big is 28391480?- 28,391,480 seconds is equal to 46 weeks, 6 days, 14 hours, 31 minutes, 20 seconds.
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To count from 1 to 28,391,480 would take you about eighteen 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 28391480 cubic inches would be around 25.4 feet tall.
Recreational maths with 28391480
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The information we have on file for 28391480 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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