28128708
28,128,708 is an even composite number composed of four prime numbers multiplied together.
28128708 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 28128708:
22 × 35 × 43 × 673
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 43 × 673)See below for interesting mathematical facts about the number 28128708 from the Numbermatics database.
Names of 28128708
- Cardinal: 28128708 can be written as Twenty-eight million, one hundred twenty-eight thousand, seven hundred eight.
Scientific notation
- Scientific notation: 2.8128708 × 107
Factors of 28128708
Divisors of 28128708
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 43 54 81 86 108 129 162 172 243 258 324 387 486 516 673 774 972 1161 1346 1548 2019 2322 2692 3483 4038 4644 6057 6966 8076 10449 12114 13932 18171 20898 24228 28939 36342 41796 54513 57878 72684 86817 109026 115756 163539 173634 218052 260451 327078 347268 520902 654156 781353 1041804 1562706 2344059 3125412 4688118 7032177 9376236 14064354 28128708
- Sum of all divisors σ(n): 75563488
- Sum of proper divisors (its aliquot sum) s(n): 47434780
- 28128708 is an abundant number, because the sum of its proper divisors (47434780) is greater than itself. Its abundance is 19306072
Bases of 28128708
- Binary: 11010110100110101110001002
- Hexadecimal: 0x1AD35C4
- Base-36: GQW90
Squares and roots of 28128708
- 28128708 squared (281287082) is 791224213749264
- 28128708 cubed (281287083) is 22256114871082632270912
-
The
square root of 28128708 is 5303.6504409699 -
The
cube root of 28128708 is 304.1234638165
Scales and comparisons
How big is 28128708?- 28,128,708 seconds is equal to 46 weeks, 3 days, 13 hours, 31 minutes, 48 seconds.
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To count from 1 to 28,128,708 would take you about seventeen 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 28128708 cubic inches would be around 25.3 feet tall.
Recreational maths with 28128708
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The information we have on file for 28128708 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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