21389250
21,389,250 is an even composite number composed of five prime numbers multiplied together.
21389250 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 21389250:
2 × 3 × 53 × 192 × 79
(2 × 3 × 5 × 5 × 5 × 19 × 19 × 79)See below for interesting mathematical facts about the number 21389250 from the Numbermatics database.
Names of 21389250
- Cardinal: 21389250 can be written as Twenty-one million, three hundred eighty-nine thousand, two hundred fifty.
Scientific notation
- Scientific notation: 2.138925 × 107
Factors of 21389250
Divisors of 21389250
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 10 15 19 25 30 38 50 57 75 79 95 114 125 150 158 190 237 250 285 361 375 395 474 475 570 722 750 790 950 1083 1185 1425 1501 1805 1975 2166 2370 2375 2850 3002 3610 3950 4503 4750 5415 5925 7125 7505 9006 9025 9875 10830 11850 14250 15010 18050 19750 22515 27075 28519 29625 37525 45030 45125 54150 57038 59250 75050 85557 90250 112575 135375 142595 171114 187625 225150 270750 285190 375250 427785 562875 712975 855570 1125750 1425950 2138925 3564875 4277850 7129750 10694625 21389250
- Sum of all divisors σ(n): 57058560
- Sum of proper divisors (its aliquot sum) s(n): 35669310
- 21389250 is an abundant number, because the sum of its proper divisors (35669310) is greater than itself. Its abundance is 14280060
Bases of 21389250
- Binary: 10100011001011111110000102
- Hexadecimal: 0x1465FC2
- Base-36: CQG1U
Squares and roots of 21389250
- 21389250 squared (213892502) is 457500015562500
- 21389250 cubed (213892503) is 9785582207870203125000
-
The
square root of 21389250 is 4624.8513489625 -
The
cube root of 21389250 is 277.5866136579
Scales and comparisons
How big is 21389250?- 21,389,250 seconds is equal to 35 weeks, 2 days, 13 hours, 27 minutes, 30 seconds.
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To count from 1 to 21,389,250 would take you about eight 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 21389250 cubic inches would be around 23.1 feet tall.
Recreational maths with 21389250
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The information we have on file for 21389250 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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