21309420
21,309,420 is an even composite number composed of six prime numbers multiplied together.
21309420 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21309420:
22 × 3 × 5 × 11 × 83 × 389
(2 × 2 × 3 × 5 × 11 × 83 × 389)See below for interesting mathematical facts about the number 21309420 from the Numbermatics database.
Names of 21309420
- Cardinal: 21309420 can be written as Twenty-one million, three hundred nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.130942 × 107
Factors of 21309420
Divisors of 21309420
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 83 110 132 165 166 220 249 330 332 389 415 498 660 778 830 913 996 1167 1245 1556 1660 1826 1945 2334 2490 2739 3652 3890 4279 4565 4668 4980 5478 5835 7780 8558 9130 10956 11670 12837 13695 17116 18260 21395 23340 25674 27390 32287 42790 51348 54780 64185 64574 85580 96861 128370 129148 161435 193722 256740 322870 355157 387444 484305 645740 710314 968610 1065471 1420628 1775785 1937220 2130942 3551570 4261884 5327355 7103140 10654710 21309420
- Sum of all divisors σ(n): 66044160
- Sum of proper divisors (its aliquot sum) s(n): 44734740
- 21309420 is an abundant number, because the sum of its proper divisors (44734740) is greater than itself. Its abundance is 23425320
Bases of 21309420
- Binary: 10100010100100111111011002
- Hexadecimal: 0x14527EC
- Base-36: COQGC
Squares and roots of 21309420
- 21309420 squared (213094202) is 454091380736400
- 21309420 cubed (213094203) is 9676423950491856888000
-
The
square root of 21309420 is 4616.2127333995 -
The
cube root of 21309420 is 277.2408423753
Scales and comparisons
How big is 21309420?- 21,309,420 seconds is equal to 35 weeks, 1 day, 15 hours, 17 minutes.
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To count from 1 to 21,309,420 would take you about five days!
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 21309420 cubic inches would be around 23.1 feet tall.
Recreational maths with 21309420
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The information we have on file for 21309420 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!
Keywords: Divisors of 21309420, math, Factors of 21309420, curriculum, school, college, exams, university, Prime factorization of 21309420, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred nine thousand, four hundred twenty.