12855440
12,855,440 is an even composite number composed of five prime numbers multiplied together.
12855440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 12855440:
24 × 5 × 13 × 47 × 263
(2 × 2 × 2 × 2 × 5 × 13 × 47 × 263)See below for interesting mathematical facts about the number 12855440 from the Numbermatics database.
Names of 12855440
- Cardinal: 12855440 can be written as Twelve million, eight hundred fifty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.285544 × 107
Factors of 12855440
Divisors of 12855440
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 40 47 52 65 80 94 104 130 188 208 235 260 263 376 470 520 526 611 752 940 1040 1052 1222 1315 1880 2104 2444 2630 3055 3419 3760 4208 4888 5260 6110 6838 9776 10520 12220 12361 13676 17095 21040 24440 24722 27352 34190 48880 49444 54704 61805 68380 98888 123610 136760 160693 197776 247220 273520 321386 494440 642772 803465 988880 1285544 1606930 2571088 3213860 6427720 12855440
- Sum of all divisors σ(n): 32997888
- Sum of proper divisors (its aliquot sum) s(n): 20142448
- 12855440 is an abundant number, because the sum of its proper divisors (20142448) is greater than itself. Its abundance is 7287008
Bases of 12855440
- Binary: 1100010000101000100100002
- Hexadecimal: 0xC42890
- Base-36: 7NJBK
Squares and roots of 12855440
- 12855440 squared (128554402) is 165262337593600
- 12855440 cubed (128554403) is 2124520065194269184000
-
The
square root of 12855440 is 3585.4483680567 -
The
cube root of 12855440 is 234.2586566865
Scales and comparisons
How big is 12855440?- 12,855,440 seconds is equal to 21 weeks, 1 day, 18 hours, 57 minutes, 20 seconds.
-
To count from 1 to 12,855,440 would take you about thirty-one 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 12855440 cubic inches would be around 19.5 feet tall.
Recreational maths with 12855440
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The information we have on file for 12855440 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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