666748142

Names of 666748142

• Cardinal: 666748142 can be written as Six hundred sixty-six million, seven hundred forty-eight thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 6.66748142 × 10⁸

Factors of 666748142

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 75930

Divisors of 666748142

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4679 9358 71249 142498 333374071 666748142
• Sum of all divisors σ(n): 1000350000
• Sum of proper divisors (its aliquot sum) s(n): 333601858
• 666748142 is a deficient number, because the sum of its proper divisors (333601858) is less than itself. Its deficiency is 333146284

Bases of 666748142

• Binary: 100111101111011100010011101110₂
• Hexadecimal: 0x27BDC4EE
• Base-36: B0YQ5Q

Squares and roots of 666748142

• 666748142 squared (666748142²) is 444553084860452164
• 666748142 cubed (666748142³) is 296404943351074809626879288
• The square root of 666748142 is 25821.4666895589
• The cube root of 666748142 is 873.6160509165

Scales and comparisons

• 666,748,142 seconds is equal to 21 years, 10 weeks, 2 days, 23 hours, 49 minutes, 2 seconds.
• To count from 1 to 666,748,142 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 666748142 cubic inches would be around 72.8 feet tall.

Recreational maths with 666748142

• 666748142 backwards is 241847666
• The number of decimal digits it has is: 9
• The sum of 666748142's digits is 44
• More coming soon!