28387040
28,387,040 is an even composite number composed of four prime numbers multiplied together.
28387040 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 28387040:
25 × 5 × 11 × 1272
(2 × 2 × 2 × 2 × 2 × 5 × 11 × 127 × 127)See below for interesting mathematical facts about the number 28387040 from the Numbermatics database.
Names of 28387040
- Cardinal: 28387040 can be written as Twenty-eight million, three hundred eighty-seven thousand and forty.
Scientific notation
- Scientific notation: 2.838704 × 107
Factors of 28387040
Divisors of 28387040
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 127 160 176 220 254 352 440 508 635 880 1016 1270 1397 1760 2032 2540 2794 4064 5080 5588 6985 10160 11176 13970 16129 20320 22352 27940 32258 44704 55880 64516 80645 111760 129032 161290 177419 223520 258064 322580 354838 516128 645160 709676 887095 1290320 1419352 1774190 2580640 2838704 3548380 5677408 7096760 14193520 28387040
- Sum of all divisors σ(n): 73741752
- Sum of proper divisors (its aliquot sum) s(n): 45354712
- 28387040 is an abundant number, because the sum of its proper divisors (45354712) is greater than itself. Its abundance is 16967672
Bases of 28387040
- Binary: 11011000100100110111000002
- Hexadecimal: 0x1B126E0
- Base-36: GWFKW
Squares and roots of 28387040
- 28387040 squared (283870402) is 805824039961600
- 28387040 cubed (283870403) is 22874959255351537664000
-
The
square root of 28387040 is 5327.9489487043 -
The
cube root of 28387040 is 305.0516440365
Scales and comparisons
How big is 28387040?- 28,387,040 seconds is equal to 46 weeks, 6 days, 13 hours, 17 minutes, 20 seconds.
-
To count from 1 to 28,387,040 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 28387040 cubic inches would be around 25.4 feet tall.
Recreational maths with 28387040
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The information we have on file for 28387040 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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