161280
161,280 is an even composite number composed of four prime numbers multiplied together.
161280 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 161280:
29 × 32 × 5 × 7
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7)See below for interesting mathematical facts about the number 161280 from the Numbermatics database.
Names of 161280
- Cardinal: 161280 can be written as One hundred sixty-one thousand, two hundred eighty.
Scientific notation
- Scientific notation: 1.6128 × 105
Factors of 161280
Divisors of 161280
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 80 84 90 96 105 112 120 126 128 140 144 160 168 180 192 210 224 240 252 256 280 288 315 320 336 360 384 420 448 480 504 512 560 576 630 640 672 720 768 840 896 960 1008 1120 1152 1260 1280 1344 1440 1536 1680 1792 1920 2016 2240 2304 2520 2560 2688 2880 3360 3584 3840 4032 4480 4608 5040 5376 5760 6720 7680 8064 8960 10080 10752 11520 13440 16128 17920 20160 23040 26880 32256 40320 53760 80640 161280
- Sum of all divisors σ(n): 638352
- Sum of proper divisors (its aliquot sum) s(n): 477072
- 161280 is an abundant number, because the sum of its proper divisors (477072) is greater than itself. Its abundance is 315792
Bases of 161280
- Binary: 1001110110000000002
- Hexadecimal: 0x27600
- Base-36: 3GG0
Squares and roots of 161280
- 161280 squared (1612802) is 26011238400
- 161280 cubed (1612803) is 4195092529152000
-
The
square root of 161280 is 401.5968127365 -
The
cube root of 161280 is 54.4327369277
Scales and comparisons
How big is 161280?- 161,280 seconds is equal to 1 day, 20 hours, 48 minutes.
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To count from 1 to 161,280 would take you about twenty 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 161280 cubic inches would be around 4.5 feet tall.
Recreational maths with 161280
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The information we have on file for 161280 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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