666993013

Names of 666993013

• Cardinal: 666993013 can be written as Six hundred sixty-six million, nine hundred ninety-three thousand and thirteen.

Scientific notation

• Scientific notation: 6.66993013 × 10⁸

Factors of 666993013

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 636886

Divisors of 666993013

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1049 635837 666993013
• Sum of all divisors σ(n): 667629900
• Sum of proper divisors (its aliquot sum) s(n): 636887
• 666993013 is a deficient number, because the sum of its proper divisors (636887) is less than itself. Its deficiency is 666356126

Bases of 666993013

• Binary: 100111110000011000000101110101₂
• Hexadecimal: 0x27C18175
• Base-36: B13Z3P

Squares and roots of 666993013

• 666993013 squared (666993013²) is 444879679390818169
• 666993013 cubed (666993013³) is 296731637779355815076453197
• The square root of 666993013 is 25826.2078710755
• The cube root of 666993013 is 873.7229863739

Scales and comparisons

• 666,993,013 seconds is equal to 21 years, 10 weeks, 5 days, 19 hours, 50 minutes, 13 seconds.
• To count from 1 to 666,993,013 would take you about thirty-one 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 666993013 cubic inches would be around 72.8 feet tall.

Recreational maths with 666993013

• 666993013 backwards is 310399666
• The number of decimal digits it has is: 9
• The sum of 666993013's digits is 43
• More coming soon!