28986720
28,986,720 is an even composite number composed of five prime numbers multiplied together.
28986720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 28986720:
25 × 3 × 5 × 7 × 8627
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 8627)See below for interesting mathematical facts about the number 28986720 from the Numbermatics database.
Names of 28986720
- Cardinal: 28986720 can be written as Twenty-eight million, nine hundred eighty-six thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.898672 × 107
Factors of 28986720
Divisors of 28986720
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 8627 17254 25881 34508 43135 51762 60389 69016 86270 103524 120778 129405 138032 172540 181167 207048 241556 258810 276064 301945 345080 362334 414096 483112 517620 603890 690160 724668 828192 905835 966224 1035240 1207780 1380320 1449336 1811670 1932448 2070480 2415560 2898672 3623340 4140960 4831120 5797344 7246680 9662240 14493360 28986720
- Sum of all divisors σ(n): 104364288
- Sum of proper divisors (its aliquot sum) s(n): 75377568
- 28986720 is an abundant number, because the sum of its proper divisors (75377568) is greater than itself. Its abundance is 46390848
Bases of 28986720
- Binary: 11011101001001101011000002
- Hexadecimal: 0x1BA4D60
- Base-36: H9AAO
Squares and roots of 28986720
- 28986720 squared (289867202) is 840229936358400
- 28986720 cubed (289867203) is 24355509900838760448000
-
The
square root of 28986720 is 5383.9316488973 -
The
cube root of 28986720 is 307.1847784341
Scales and comparisons
How big is 28986720?- 28,986,720 seconds is equal to 47 weeks, 6 days, 11 hours, 52 minutes.
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To count from 1 to 28,986,720 would take you about nineteen 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 28986720 cubic inches would be around 25.6 feet tall.
Recreational maths with 28986720
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The information we have on file for 28986720 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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