13661440
13,661,440 is an even composite number composed of four prime numbers multiplied together.
13661440 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 13661440:
28 × 5 × 13 × 821
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 821)See below for interesting mathematical facts about the number 13661440 from the Numbermatics database.
Names of 13661440
- Cardinal: 13661440 can be written as Thirteen million, six hundred sixty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.366144 × 107
Factors of 13661440
Divisors of 13661440
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 640 821 832 1040 1280 1642 1664 2080 3284 3328 4105 4160 6568 8210 8320 10673 13136 16420 16640 21346 26272 32840 42692 52544 53365 65680 85384 105088 106730 131360 170768 210176 213460 262720 341536 426920 525440 683072 853840 1050880 1366144 1707680 2732288 3415360 6830720 13661440
- Sum of all divisors σ(n): 35283528
- Sum of proper divisors (its aliquot sum) s(n): 21622088
- 13661440 is an abundant number, because the sum of its proper divisors (21622088) is greater than itself. Its abundance is 7960648
Bases of 13661440
- Binary: 1101000001110101000000002
- Hexadecimal: 0xD07500
- Base-36: 84T8G
Squares and roots of 13661440
- 13661440 squared (136614402) is 186634942873600
- 13661440 cubed (136614403) is 2549702073971113984000
-
The
square root of 13661440 is 3696.1385255425 -
The
cube root of 13661440 is 239.0555475073
Scales and comparisons
How big is 13661440?- 13,661,440 seconds is equal to 22 weeks, 4 days, 2 hours, 50 minutes, 40 seconds.
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To count from 1 to 13,661,440 would take you about thirty-three 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 13661440 cubic inches would be around 19.9 feet tall.
Recreational maths with 13661440
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The information we have on file for 13661440 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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