21475920
21,475,920 is an even composite number composed of five prime numbers multiplied together.
21475920 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 21475920:
24 × 3 × 5 × 43 × 2081
(2 × 2 × 2 × 2 × 3 × 5 × 43 × 2081)See below for interesting mathematical facts about the number 21475920 from the Numbermatics database.
Names of 21475920
- Cardinal: 21475920 can be written as Twenty-one million, four hundred seventy-five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.147592 × 107
Factors of 21475920
Divisors of 21475920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 43 48 60 80 86 120 129 172 215 240 258 344 430 516 645 688 860 1032 1290 1720 2064 2081 2580 3440 4162 5160 6243 8324 10320 10405 12486 16648 20810 24972 31215 33296 41620 49944 62430 83240 89483 99888 124860 166480 178966 249720 268449 357932 447415 499440 536898 715864 894830 1073796 1342245 1431728 1789660 2147592 2684490 3579320 4295184 5368980 7158640 10737960 21475920
- Sum of all divisors σ(n): 68156352
- Sum of proper divisors (its aliquot sum) s(n): 46680432
- 21475920 is an abundant number, because the sum of its proper divisors (46680432) is greater than itself. Its abundance is 25204512
Bases of 21475920
- Binary: 10100011110110010010100002
- Hexadecimal: 0x147B250
- Base-36: CSAXC
Squares and roots of 21475920
- 21475920 squared (214759202) is 461215139846400
- 21475920 cubed (214759203) is 9905019446130098688000
-
The
square root of 21475920 is 4634.2119071099 -
The
cube root of 21475920 is 277.9610386543
Scales and comparisons
How big is 21475920?- 21,475,920 seconds is equal to 35 weeks, 3 days, 13 hours, 32 minutes.
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To count from 1 to 21,475,920 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 21475920 cubic inches would be around 23.2 feet tall.
Recreational maths with 21475920
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The information we have on file for 21475920 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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