642626738943

Names of 642626738943

• Cardinal: 642626738943 can be written as Six hundred forty-two billion, six hundred twenty-six million, seven hundred thirty-eight thousand, nine hundred forty-three.

Scientific notation

• Scientific notation: 6.42626738943 × 10¹¹

Factors of 642626738943

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 198085

Divisors of 642626738943

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 17 21 49 51 119 147 357 833 1307 2499 3921 9149 22219 27447 64043 66657 155533 192129 196751 466599 590253 1088731 1377257 3266193 3344767 4131771 9640799 10034301 23413369 28922397 70240107 163893583 257153557 491680749 771460671 1800074899 4371610469 5400224697 12600524293 13114831407 30601273283 37801572879 91803819849 214208912981 642626738943
• Sum of all divisors σ(n): 1056171032064
• Sum of proper divisors (its aliquot sum) s(n): 413544293121
• 642626738943 is a deficient number, because the sum of its proper divisors (413544293121) is less than itself. Its deficiency is 229082445822

Bases of 642626738943

• Binary: 1001010110011111100010011101101011111111₂
• Hexadecimal: 0x959F89DAFF
• Base-36: 877VD98F

Squares and roots of 642626738943

• 642626738943 squared (642626738943²) is 412969125604514672757249
• 642626738943 cubed (642626738943³) is 265385002471371427672185727133847807
• The square root of 642626738943 is 801640.0307762831
• The cube root of 642626738943 is 8629.5125369573

Scales and comparisons

• 642,626,738,943 seconds is equal to 20,433 years, 28 weeks, 1 day, 11 hours, 29 minutes, 3 seconds.
• To count from 1 to 642,626,738,943 would take you about forty thousand, eight hundred sixty-seven 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 642626738943 cubic inches would be around 719.1 feet tall.

Recreational maths with 642626738943

• 642626738943 backwards is 349837626246
• The number of decimal digits it has is: 12
• The sum of 642626738943's digits is 60
• More coming soon!