13128720
13,128,720 is an even composite number composed of five prime numbers multiplied together.
13128720 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 13128720:
24 × 3 × 5 × 11 × 4973
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 4973)See below for interesting mathematical facts about the number 13128720 from the Numbermatics database.
Names of 13128720
- Cardinal: 13128720 can be written as Thirteen million, one hundred twenty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.312872 × 107
Factors of 13128720
Divisors of 13128720
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 4973 9946 14919 19892 24865 29838 39784 49730 54703 59676 74595 79568 99460 109406 119352 149190 164109 198920 218812 238704 273515 298380 328218 397840 437624 547030 596760 656436 820545 875248 1094060 1193520 1312872 1641090 2188120 2625744 3282180 4376240 6564360 13128720
- Sum of all divisors σ(n): 44407872
- Sum of proper divisors (its aliquot sum) s(n): 31279152
- 13128720 is an abundant number, because the sum of its proper divisors (31279152) is greater than itself. Its abundance is 18150432
Bases of 13128720
- Binary: 1100100001010100000100002
- Hexadecimal: 0xC85410
- Base-36: 7TE6O
Squares and roots of 13128720
- 13128720 squared (131287202) is 172363288838400
- 13128720 cubed (131287203) is 2262909357438478848000
-
The
square root of 13128720 is 3623.3575589499 -
The
cube root of 13128720 is 235.9069823985
Scales and comparisons
How big is 13128720?- 13,128,720 seconds is equal to 21 weeks, 4 days, 22 hours, 52 minutes.
-
To count from 1 to 13,128,720 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 13128720 cubic inches would be around 19.7 feet tall.
Recreational maths with 13128720
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The information we have on file for 13128720 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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