28428930
28,428,930 is an even composite number composed of five prime numbers multiplied together.
28428930 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 28428930:
2 × 32 × 5 × 172 × 1093
(2 × 3 × 3 × 5 × 17 × 17 × 1093)See below for interesting mathematical facts about the number 28428930 from the Numbermatics database.
Names of 28428930
- Cardinal: 28428930 can be written as Twenty-eight million, four hundred twenty-eight thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 2.842893 × 107
Factors of 28428930
Divisors of 28428930
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 289 306 510 578 765 867 1093 1445 1530 1734 2186 2601 2890 3279 4335 5202 5465 6558 8670 9837 10930 13005 16395 18581 19674 26010 32790 37162 49185 55743 92905 98370 111486 167229 185810 278715 315877 334458 557430 631754 836145 947631 1579385 1672290 1895262 2842893 3158770 4738155 5685786 9476310 14214465 28428930
- Sum of all divisors σ(n): 78590772
- Sum of proper divisors (its aliquot sum) s(n): 50161842
- 28428930 is an abundant number, because the sum of its proper divisors (50161842) is greater than itself. Its abundance is 21732912
Bases of 28428930
- Binary: 11011000111001010100000102
- Hexadecimal: 0x1B1CA82
- Base-36: GXBWI
Squares and roots of 28428930
- 28428930 squared (284289302) is 808204060944900
- 28428930 cubed (284289303) is 22976376674318295957000
-
The
square root of 28428930 is 5331.8786557837 -
The
cube root of 28428930 is 305.2016224871
Scales and comparisons
How big is 28428930?- 28,428,930 seconds is equal to 47 weeks, 55 minutes, 30 seconds.
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To count from 1 to 28,428,930 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 28428930 cubic inches would be around 25.4 feet tall.
Recreational maths with 28428930
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The information we have on file for 28428930 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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