28857738
28,857,738 is an even composite number composed of six prime numbers multiplied together.
28857738 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 28857738:
2 × 3 × 7 × 13 × 17 × 3109
See below for interesting mathematical facts about the number 28857738 from the Numbermatics database.
Names of 28857738
- Cardinal: 28857738 can be written as Twenty-eight million, eight hundred fifty-seven thousand, seven hundred thirty-eight.
Scientific notation
- Scientific notation: 2.8857738 × 107
Factors of 28857738
Divisors of 28857738
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 6 7 13 14 17 21 26 34 39 42 51 78 91 102 119 182 221 238 273 357 442 546 663 714 1326 1547 3094 3109 4641 6218 9282 9327 18654 21763 40417 43526 52853 65289 80834 105706 121251 130578 158559 242502 282919 317118 369971 565838 687089 739942 848757 1109913 1374178 1697514 2061267 2219826 4122534 4809623 9619246 14428869 28857738
- Sum of all divisors σ(n): 75237120
- Sum of proper divisors (its aliquot sum) s(n): 46379382
- 28857738 is an abundant number, because the sum of its proper divisors (46379382) is greater than itself. Its abundance is 17521644
Bases of 28857738
- Binary: 11011100001010101100010102
- Hexadecimal: 0x1B8558A
- Base-36: H6IRU
Squares and roots of 28857738
- 28857738 squared (288577382) is 832769042476644
- 28857738 cubed (288577383) is 24031830842301863671272
-
The
square root of 28857738 is 5371.9398730813 -
The
cube root of 28857738 is 306.7284749919
Scales and comparisons
How big is 28857738?- 28,857,738 seconds is equal to 47 weeks, 5 days, 2 minutes, 18 seconds.
-
To count from 1 to 28,857,738 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 28857738 cubic inches would be around 25.6 feet tall.
Recreational maths with 28857738
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The information we have on file for 28857738 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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