21420590438
21,420,590,438 is an even composite number composed of six prime numbers multiplied together.
21420590438 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21420590438:
2 × 13 × 43 × 107 × 241 × 743
See below for interesting mathematical facts about the number 21420590438 from the Numbermatics database.
Names of 21420590438
- Cardinal: 21420590438 can be written as Twenty-one billion, four hundred twenty million, five hundred ninety thousand, four hundred thirty-eight.
Scientific notation
- Scientific notation: 2.1420590438 × 1010
Factors of 21420590438
Divisors of 21420590438
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 13 26 43 86 107 214 241 482 559 743 1118 1391 1486 2782 3133 4601 6266 9202 9659 10363 19318 20726 25787 31949 51574 59813 63898 79501 119626 134719 159002 179063 269438 335231 358126 415337 670462 830674 1033513 1108841 2067026 2217682 2327819 3418543 4655638 6837086 7699709 14414933 15399418 19159741 28829866 38319482 44441059 88882118 100096217 200192434 249076633 498153266 823868863 1647737726 10710295219 21420590438
- Sum of all divisors σ(n): 35934700032
- Sum of proper divisors (its aliquot sum) s(n): 14514109594
- 21420590438 is a deficient number, because the sum of its proper divisors (14514109594) is less than itself. Its deficiency is 6906480844
Bases of 21420590438
- Binary: 100111111001100010001000101011001102
- Hexadecimal: 0x4FCC44566
- Base-36: 9U99LD2
Squares and roots of 21420590438
- 21420590438 squared (214205904382) is 458841694712537031844
- 21420590438 cubed (214205904383) is 9828660018315085903038487907672
-
The
square root of 21420590438 is 146357.7481310777 -
The
cube root of 21420590438 is 2777.2212472795
Scales and comparisons
How big is 21420590438?- 21,420,590,438 seconds is equal to 681 years, 5 weeks, 4 days, 12 hours, 38 seconds.
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To count from 1 to 21,420,590,438 would take you about one thousand, three hundred sixty-two years!
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 21420590438 cubic inches would be around 231.4 feet tall.
Recreational maths with 21420590438
- 21420590438 backwards is 83409502412
- The number of decimal digits it has is: 11
- The sum of 21420590438's digits is 38
- More coming soon!
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The information we have on file for 21420590438 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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