21438332643
21,438,332,643 is an odd composite number composed of five prime numbers multiplied together.
21438332643 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21438332643:
3 × 7 × 13 × 193 × 1072
(3 × 7 × 13 × 19 × 19 × 19 × 107 × 107)See below for interesting mathematical facts about the number 21438332643 from the Numbermatics database.
Names of 21438332643
- Cardinal: 21438332643 can be written as Twenty-one billion, four hundred thirty-eight million, three hundred thirty-two thousand, six hundred forty-three.
Scientific notation
- Scientific notation: 2.1438332643 × 1010
Factors of 21438332643
Divisors of 21438332643
- Number of divisors d(n): 96
-
Complete list of divisors:
1 3 7 13 19 21 39 57 91 107 133 247 273 321 361 399 741 749 1083 1391 1729 2033 2247 2527 4173 4693 5187 6099 6859 7581 9737 11449 14079 14231 20577 26429 29211 32851 34347 38627 42693 48013 79287 80143 89167 98553 115881 144039 148837 185003 217531 240429 267501 270389 446511 502151 555009 624169 652593 733913 811167 1041859 1506453 1522717 1872507 2201739 2827903 3125577 3515057 4133089 4568151 5137391 8483709 9540869 10545171 12399267 15412173 19795321 28622607 28931623 53730157 59385963 66786083 78528691 86794869 161190471 200358249 235586073 376111099 549700837 1020872983 1128333297 1649102511 3062618949 7146110881 21438332643
- Sum of all divisors σ(n): 37485360640
- Sum of proper divisors (its aliquot sum) s(n): 16047027997
- 21438332643 is a deficient number, because the sum of its proper divisors (16047027997) is less than itself. Its deficiency is 5391304646
Bases of 21438332643
- Binary: 100111111011101001011111110111000112
- Hexadecimal: 0x4FDD2FEE3
- Base-36: 9UJTVC3
Squares and roots of 21438332643
- 21438332643 squared (214383326432) is 459602106511919365449
- 21438332643 cubed (214383326433) is 9853102842826043800889143051707
-
The
square root of 21438332643 is 146418.3480408107 -
The
cube root of 21438332643 is 2777.9878061487
Scales and comparisons
How big is 21438332643?- 21,438,332,643 seconds is equal to 681 years, 34 weeks, 6 days, 20 hours, 24 minutes, 3 seconds.
-
To count from 1 to 21,438,332,643 would take you about one thousand, three hundred sixty-three 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 21438332643 cubic inches would be around 231.5 feet tall.
Recreational maths with 21438332643
- 21438332643 backwards is 34623383412
- 21438332643 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21438332643's digits is 39
- More coming soon!
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Keywords: Divisors of 21438332643, math, Factors of 21438332643, curriculum, school, college, exams, university, Prime factorization of 21438332643, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, four hundred thirty-eight million, three hundred thirty-two thousand, six hundred forty-three.