55440
55,440 is an even composite number composed of five prime numbers multiplied together.
55440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 55440:
24 × 32 × 5 × 7 × 11
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 11)See below for interesting mathematical facts about the number 55440 from the Numbermatics database.
Names of 55440
- Cardinal: 55440 can be written as Fifty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 5.544 × 104
Factors of 55440
Divisors of 55440
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 28 30 33 35 36 40 42 44 45 48 55 56 60 63 66 70 72 77 80 84 88 90 99 105 110 112 120 126 132 140 144 154 165 168 176 180 198 210 220 231 240 252 264 280 308 315 330 336 360 385 396 420 440 462 495 504 528 560 616 630 660 693 720 770 792 840 880 924 990 1008 1155 1232 1260 1320 1386 1540 1584 1680 1848 1980 2310 2520 2640 2772 3080 3465 3696 3960 4620 5040 5544 6160 6930 7920 9240 11088 13860 18480 27720 55440
- Sum of all divisors σ(n): 232128
- Sum of proper divisors (its aliquot sum) s(n): 176688
- 55440 is an abundant number, because the sum of its proper divisors (176688) is greater than itself. Its abundance is 121248
Bases of 55440
- Binary: 11011000100100002
- Hexadecimal: 0xD890
- Base-36: 16S0
Squares and roots of 55440
- 55440 squared (554402) is 3073593600
- 55440 cubed (554403) is 170400029184000
-
The
square root of 55440 is 235.4570024443 -
The
cube root of 55440 is 38.1306674365
Scales and comparisons
How big is 55440?- 55,440 seconds is equal to 15 hours, 24 minutes.
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To count from 1 to 55,440 would take you about fifteen hours.
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 55440 cubic inches would be around 3.2 feet tall.
Recreational maths with 55440
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The information we have on file for 55440 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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