21424221
21,424,221 is an odd composite number composed of five prime numbers multiplied together.
21424221 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21424221:
32 × 72 × 13 × 37 × 101
(3 × 3 × 7 × 7 × 13 × 37 × 101)See below for interesting mathematical facts about the number 21424221 from the Numbermatics database.
Names of 21424221
- Cardinal: 21424221 can be written as Twenty-one million, four hundred twenty-four thousand, two hundred twenty-one.
Scientific notation
- Scientific notation: 2.1424221 × 107
Factors of 21424221
Divisors of 21424221
- Number of divisors d(n): 72
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Complete list of divisors:
1 3 7 9 13 21 37 39 49 63 91 101 111 117 147 259 273 303 333 441 481 637 707 777 819 909 1313 1443 1813 1911 2121 2331 3367 3737 3939 4329 4949 5439 5733 6363 9191 10101 11211 11817 14847 16317 23569 26159 27573 30303 33633 44541 48581 64337 70707 78477 82719 145743 183113 193011 212121 235431 340067 437229 549339 579033 1020201 1648017 2380469 3060603 7141407 21424221
- Sum of all divisors σ(n): 40209624
- Sum of proper divisors (its aliquot sum) s(n): 18785403
- 21424221 is a deficient number, because the sum of its proper divisors (18785403) is less than itself. Its deficiency is 2638818
Bases of 21424221
- Binary: 10100011011101000010111012
- Hexadecimal: 0x146E85D
- Base-36: CR719
Squares and roots of 21424221
- 21424221 squared (214242212) is 458997245456841
- 21424221 cubed (214242213) is 9833658425058607545861
-
The
square root of 21424221 is 4628.6305750189 -
The
cube root of 21424221 is 277.7378141559
Scales and comparisons
How big is 21424221?- 21,424,221 seconds is equal to 35 weeks, 2 days, 23 hours, 10 minutes, 21 seconds.
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To count from 1 to 21,424,221 would take you about twenty-two 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 21424221 cubic inches would be around 23.1 feet tall.
Recreational maths with 21424221
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The information we have on file for 21424221 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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