1338947809

Names of 1338947809

• Cardinal: 1338947809 can be written as One billion, three hundred thirty-eight million, nine hundred forty-seven thousand, eight hundred nine.

Scientific notation

• Scientific notation: 1.338947809 × 10⁹

Factors of 1338947809

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7607

Divisors of 1338947809

• Number of divisors d(n): 8
• Complete list of divisors:
  1 101 2843 4663 287143 470963 13256909 1338947809
• Sum of all divisors σ(n): 1352970432
• Sum of proper divisors (its aliquot sum) s(n): 14022623
• 1338947809 is a deficient number, because the sum of its proper divisors (14022623) is less than itself. Its deficiency is 1324925186

Bases of 1338947809

• Binary: 1001111110011101011100011100001₂
• Hexadecimal: 0x4FCEB8E1
• Base-36: M56AQP

Squares and roots of 1338947809

• 1338947809 squared (1338947809²) is 1792781235225900481
• 1338947809 cubed (1338947809³) is 2400440506922033069086996129
• The square root of 1338947809 is 36591.6357792323
• The cube root of 1338947809 is 1102.1851354463

Scales and comparisons

• 1,338,947,809 seconds is equal to 42 years, 29 weeks, 6 days, 1 hour, 56 minutes, 49 seconds.
• To count from 1 to 1,338,947,809 would take you about eighty-five 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 1338947809 cubic inches would be around 91.8 feet tall.

Recreational maths with 1338947809

• 1338947809 backwards is 9087498331
• The number of decimal digits it has is: 10
• The sum of 1338947809's digits is 52
• More coming soon!