668427842

Names of 668427842

• Cardinal: 668427842 can be written as Six hundred sixty-eight million, four hundred twenty-seven thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 6.68427842 × 10⁸

Factors of 668427842

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 334213923

Divisors of 668427842

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 334213921 668427842
• Sum of all divisors σ(n): 1002641766
• Sum of proper divisors (its aliquot sum) s(n): 334213924
• 668427842 is a deficient number, because the sum of its proper divisors (334213924) is less than itself. Its deficiency is 334213918

Bases of 668427842

• Binary: 100111110101110110011001000010₂
• Hexadecimal: 0x27D76642
• Base-36: B1YQ82

Squares and roots of 668427842

• 668427842 squared (668427842²) is 446795779960776964
• 668427842 cubed (668427842³) is 298650739013888990689831688
• The square root of 668427842 is 25853.9714937571
• The cube root of 668427842 is 874.3490525071

Scales and comparisons

• 668,427,842 seconds is equal to 21 years, 13 weeks, 1 day, 10 hours, 24 minutes, 2 seconds.
• To count from 1 to 668,427,842 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 668427842 cubic inches would be around 72.9 feet tall.

Recreational maths with 668427842

• 668427842 backwards is 248724866
• The number of decimal digits it has is: 9
• The sum of 668427842's digits is 47
• More coming soon!