28338728
28,338,728 is an even composite number composed of five prime numbers multiplied together.
28338728 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 28338728:
23 × 11 × 17 × 19 × 997
(2 × 2 × 2 × 11 × 17 × 19 × 997)See below for interesting mathematical facts about the number 28338728 from the Numbermatics database.
Names of 28338728
- Cardinal: 28338728 can be written as Twenty-eight million, three hundred thirty-eight thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.8338728 × 107
Factors of 28338728
Divisors of 28338728
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 8 11 17 19 22 34 38 44 68 76 88 136 152 187 209 323 374 418 646 748 836 997 1292 1496 1672 1994 2584 3553 3988 7106 7976 10967 14212 16949 18943 21934 28424 33898 37886 43868 67796 75772 87736 135592 151544 186439 208373 322031 372878 416746 644062 745756 833492 1288124 1491512 1666984 2576248 3542341 7084682 14169364 28338728
- Sum of all divisors σ(n): 64670400
- Sum of proper divisors (its aliquot sum) s(n): 36331672
- 28338728 is an abundant number, because the sum of its proper divisors (36331672) is greater than itself. Its abundance is 7992944
Bases of 28338728
- Binary: 11011000001101010001010002
- Hexadecimal: 0x1B06A28
- Base-36: GVEAW
Squares and roots of 28338728
- 28338728 squared (283387282) is 803083504657984
- 28338728 cubed (283387283) is 22758364999789341604352
-
The
square root of 28338728 is 5323.4131908015 -
The
cube root of 28338728 is 304.8784896249
Scales and comparisons
How big is 28338728?- 28,338,728 seconds is equal to 46 weeks, 5 days, 23 hours, 52 minutes, 8 seconds.
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To count from 1 to 28,338,728 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 28338728 cubic inches would be around 25.4 feet tall.
Recreational maths with 28338728
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The information we have on file for 28338728 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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