13881000
13,881,000 is an even composite number composed of five prime numbers multiplied together.
13881000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 13881000:
23 × 3 × 53 × 7 × 661
(2 × 2 × 2 × 3 × 5 × 5 × 5 × 7 × 661)See below for interesting mathematical facts about the number 13881000 from the Numbermatics database.
Names of 13881000
- Cardinal: 13881000 can be written as Thirteen million, eight hundred eighty-one thousand.
Scientific notation
- Scientific notation: 1.3881 × 107
Factors of 13881000
Divisors of 13881000
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 125 140 150 168 175 200 210 250 280 300 350 375 420 500 525 600 661 700 750 840 875 1000 1050 1322 1400 1500 1750 1983 2100 2625 2644 3000 3305 3500 3966 4200 4627 5250 5288 6610 7000 7932 9254 9915 10500 13220 13881 15864 16525 18508 19830 21000 23135 26440 27762 33050 37016 39660 46270 49575 55524 66100 69405 79320 82625 92540 99150 111048 115675 132200 138810 165250 185080 198300 231350 247875 277620 330500 347025 396600 462700 495750 555240 578375 661000 694050 925400 991500 1156750 1388100 1735125 1983000 2313500 2776200 3470250 4627000 6940500 13881000
- Sum of all divisors σ(n): 49570560
- Sum of proper divisors (its aliquot sum) s(n): 35689560
- 13881000 is an abundant number, because the sum of its proper divisors (35689560) is greater than itself. Its abundance is 21808560
Bases of 13881000
- Binary: 1101001111001110101010002
- Hexadecimal: 0xD3CEA8
- Base-36: 89INC
Squares and roots of 13881000
- 13881000 squared (138810002) is 192682161000000
- 13881000 cubed (138810003) is 2674621076841000000000
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The
square root of 13881000 is 3725.7214066541 -
The
cube root of 13881000 is 240.3294087787
Scales and comparisons
How big is 13881000?- 13,881,000 seconds is equal to 22 weeks, 6 days, 15 hours, 50 minutes.
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To count from 1 to 13,881,000 would take you about thirty-four 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 13881000 cubic inches would be around 20 feet tall.
Recreational maths with 13881000
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