21403690
21,403,690 is an even composite number composed of five prime numbers multiplied together.
21403690 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 21403690:
2 × 5 × 72 × 112 × 192
(2 × 5 × 7 × 7 × 11 × 11 × 19 × 19)See below for interesting mathematical facts about the number 21403690 from the Numbermatics database.
Names of 21403690
- Cardinal: 21403690 can be written as Twenty-one million, four hundred three thousand, six hundred ninety.
Scientific notation
- Scientific notation: 2.140369 × 107
Factors of 21403690
Divisors of 21403690
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 5 7 10 11 14 19 22 35 38 49 55 70 77 95 98 110 121 133 154 190 209 242 245 266 361 385 418 490 539 605 665 722 770 847 931 1045 1078 1210 1330 1463 1694 1805 1862 2090 2299 2527 2695 2926 3610 3971 4235 4598 4655 5054 5390 5929 7315 7942 8470 9310 10241 11495 11858 12635 14630 16093 17689 19855 20482 22990 25270 27797 29645 32186 35378 39710 43681 51205 55594 59290 80465 87362 88445 102410 112651 138985 160930 176890 194579 218405 225302 277970 305767 389158 436810 563255 611534 972895 1126510 1528835 1945790 2140369 3057670 4280738 10701845 21403690
- Sum of all divisors σ(n): 51990498
- Sum of proper divisors (its aliquot sum) s(n): 30586808
- 21403690 is an abundant number, because the sum of its proper divisors (30586808) is greater than itself. Its abundance is 9183118
Bases of 21403690
- Binary: 10100011010011000001010102
- Hexadecimal: 0x146982A
- Base-36: CQR6Y
Squares and roots of 21403690
- 21403690 squared (214036902) is 458117945616100
- 21403690 cubed (214036903) is 9805414491403863409000
-
The
square root of 21403690 is 4626.4122168263 -
The
cube root of 21403690 is 277.6490663545
Scales and comparisons
How big is 21403690?- 21,403,690 seconds is equal to 35 weeks, 2 days, 17 hours, 28 minutes, 10 seconds.
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To count from 1 to 21,403,690 would take you about fourteen 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 21403690 cubic inches would be around 23.1 feet tall.
Recreational maths with 21403690
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The information we have on file for 21403690 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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