13220865
13,220,865 is an odd composite number composed of five prime numbers multiplied together.
13220865 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 13220865:
32 × 5 × 7 × 19 × 472
(3 × 3 × 5 × 7 × 19 × 47 × 47)See below for interesting mathematical facts about the number 13220865 from the Numbermatics database.
Names of 13220865
- Cardinal: 13220865 can be written as Thirteen million, two hundred twenty thousand, eight hundred sixty-five.
Scientific notation
- Scientific notation: 1.3220865 × 107
Factors of 13220865
Divisors of 13220865
- Number of divisors d(n): 72
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Complete list of divisors:
1 3 5 7 9 15 19 21 35 45 47 57 63 95 105 133 141 171 235 285 315 329 399 423 665 705 855 893 987 1197 1645 1995 2115 2209 2679 2961 4465 4935 5985 6251 6627 8037 11045 13395 14805 15463 18753 19881 31255 33135 40185 41971 46389 56259 77315 93765 99405 125913 139167 209855 231945 281295 293797 377739 629565 695835 881391 1468985 1888695 2644173 4406955 13220865
- Sum of all divisors σ(n): 28167360
- Sum of proper divisors (its aliquot sum) s(n): 14946495
- 13220865 is an abundant number, because the sum of its proper divisors (14946495) is greater than itself. Its abundance is 1725630
Bases of 13220865
- Binary: 1100100110111100000000012
- Hexadecimal: 0xC9BC01
- Base-36: 7VDA9
Squares and roots of 13220865
- 13220865 squared (132208652) is 174791271348225
- 13220865 cubed (132208653) is 2310891801673250714625
-
The
square root of 13220865 is 3636.0507422201 -
The
cube root of 13220865 is 236.4576070453
Scales and comparisons
How big is 13220865?- 13,220,865 seconds is equal to 21 weeks, 6 days, 27 minutes, 45 seconds.
-
To count from 1 to 13,220,865 would take you about thirty-two 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 13220865 cubic inches would be around 19.7 feet tall.
Recreational maths with 13220865
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The information we have on file for 13220865 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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