28723140
28,723,140 is an even composite number composed of five prime numbers multiplied together.
28723140 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 28723140:
22 × 33 × 5 × 43 × 1237
(2 × 2 × 3 × 3 × 3 × 5 × 43 × 1237)See below for interesting mathematical facts about the number 28723140 from the Numbermatics database.
Names of 28723140
- Cardinal: 28723140 can be written as Twenty-eight million, seven hundred twenty-three thousand, one hundred forty.
Scientific notation
- Scientific notation: 2.872314 × 107
Factors of 28723140
Divisors of 28723140
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 43 45 54 60 86 90 108 129 135 172 180 215 258 270 387 430 516 540 645 774 860 1161 1237 1290 1548 1935 2322 2474 2580 3711 3870 4644 4948 5805 6185 7422 7740 11133 11610 12370 14844 18555 22266 23220 24740 33399 37110 44532 53191 55665 66798 74220 106382 111330 133596 159573 166995 212764 222660 265955 319146 333990 478719 531910 638292 667980 797865 957438 1063820 1436157 1595730 1914876 2393595 2872314 3191460 4787190 5744628 7180785 9574380 14361570 28723140
- Sum of all divisors σ(n): 91512960
- Sum of proper divisors (its aliquot sum) s(n): 62789820
- 28723140 is an abundant number, because the sum of its proper divisors (62789820) is greater than itself. Its abundance is 34066680
Bases of 28723140
- Binary: 11011011001000111110001002
- Hexadecimal: 0x1B647C4
- Base-36: H3MX0
Squares and roots of 28723140
- 28723140 squared (287231402) is 825018771459600
- 28723140 cubed (287231403) is 23697129675262095144000
-
The
square root of 28723140 is 5359.3973541807 -
The
cube root of 28723140 is 306.2508515873
Scales and comparisons
How big is 28723140?- 28,723,140 seconds is equal to 47 weeks, 3 days, 10 hours, 39 minutes.
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To count from 1 to 28,723,140 would take you about nineteen 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 28723140 cubic inches would be around 25.5 feet tall.
Recreational maths with 28723140
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The information we have on file for 28723140 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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