28081040
28,081,040 is an even composite number composed of five prime numbers multiplied together.
28081040 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 28081040:
24 × 5 × 132 × 31 × 67
(2 × 2 × 2 × 2 × 5 × 13 × 13 × 31 × 67)See below for interesting mathematical facts about the number 28081040 from the Numbermatics database.
Names of 28081040
- Cardinal: 28081040 can be written as Twenty-eight million, eighty-one thousand and forty.
Scientific notation
- Scientific notation: 2.808104 × 107
Factors of 28081040
Divisors of 28081040
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 31 40 52 62 65 67 80 104 124 130 134 155 169 208 248 260 268 310 335 338 403 496 520 536 620 670 676 806 845 871 1040 1072 1240 1340 1352 1612 1690 1742 2015 2077 2480 2680 2704 3224 3380 3484 4030 4154 4355 5239 5360 6448 6760 6968 8060 8308 8710 10385 10478 11323 13520 13936 16120 16616 17420 20770 20956 22646 26195 27001 32240 33232 34840 41540 41912 45292 52390 54002 56615 69680 83080 83824 90584 104780 108004 113230 135005 166160 181168 209560 216008 226460 270010 351013 419120 432016 452920 540020 702026 905840 1080040 1404052 1755065 2160080 2808104 3510130 5616208 7020260 14040520 28081040
- Sum of all divisors σ(n): 74066688
- Sum of proper divisors (its aliquot sum) s(n): 45985648
- 28081040 is an abundant number, because the sum of its proper divisors (45985648) is greater than itself. Its abundance is 17904608
Bases of 28081040
- Binary: 11010110001111011100100002
- Hexadecimal: 0x1AC7B90
- Base-36: GPVGW
Squares and roots of 28081040
- 28081040 squared (280810402) is 788544807481600
- 28081040 cubed (280810403) is 22143158280683108864000
-
The
square root of 28081040 is 5299.1546495645 -
The
cube root of 28081040 is 303.9515735419
Scales and comparisons
How big is 28081040?- 28,081,040 seconds is equal to 46 weeks, 3 days, 17 minutes, 20 seconds.
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To count from 1 to 28,081,040 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 28081040 cubic inches would be around 25.3 feet tall.
Recreational maths with 28081040
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The information we have on file for 28081040 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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