642336813909

Names of 642336813909

• Cardinal: 642336813909 can be written as Six hundred forty-two billion, three hundred thirty-six million, eight hundred thirteen thousand, nine hundred nine.

Scientific notation

• Scientific notation: 6.42336813909 × 10¹¹

Factors of 642336813909

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 286881

Divisors of 642336813909

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 9 21 27 63 71 167 189 213 497 501 639 1169 1491 1503 1917 3507 4473 4509 10521 11857 13419 31563 35571 82999 106713 248997 286633 320139 746991 859899 2006431 2240973 2579697 6019293 7739091 18057879 20350943 47867711 54173637 61052829 142456601 143603133 183158487 335073977 427369803 430809399 549475461 1005221931 1282109409 1292428197 3015665793 3398607481 3846328227 9046997379 10195822443 23790252367 30587467329 71370757101 91762401987 214112271303 642336813909
• Sum of all divisors σ(n): 1109479956480
• Sum of proper divisors (its aliquot sum) s(n): 467143142571
• 642336813909 is a deficient number, because the sum of its proper divisors (467143142571) is less than itself. Its deficiency is 175193671338

Bases of 642336813909

• Binary: 1001010110001110010000011111001101010101₂
• Hexadecimal: 0x958E41F355
• Base-36: 8732R5N9

Squares and roots of 642336813909

• 642336813909 squared (642336813909²) is 412596582502765295860281
• 642336813909 cubed (642336813909³) is 265025974234568117324908644761448429
• The square root of 642336813909 is 801459.1779429567
• The cube root of 642336813909 is 8628.2145890663

Scales and comparisons

• 642,336,813,909 seconds is equal to 20,424 years, 16 weeks, 5 days, 20 hours, 45 minutes, 9 seconds.
• To count from 1 to 642,336,813,909 would take you about forty thousand, eight hundred forty-eight 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 642336813909 cubic inches would be around 719 feet tall.

Recreational maths with 642336813909

• 642336813909 backwards is 909318633246
• The number of decimal digits it has is: 12
• The sum of 642336813909's digits is 54
• More coming soon!