68

Names of 68

• Cardinal: 68 can be written as Sixty-eight.

Scientific notation

• Scientific notation: 6.8 × 10¹

Factors of 68

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 19

Divisors of 68

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 17 34 68
• Sum of all divisors σ(n): 126
• Sum of proper divisors (its aliquot sum) s(n): 58
• 68 is a deficient number, because the sum of its proper divisors (58) is less than itself. Its deficiency is 10

Bases of 68

• Binary: 1000100₂
• Hexadecimal: 0x44
• Base-36: 1W

Squares and roots of 68

• 68 squared (68²) is 4624
• 68 cubed (68³) is 314432
• The square root of 68 is 8.2462112513
• The cube root of 68 is 4.0816551019

Scales and comparisons

• 68 seconds is equal to 1 minute, 8 seconds.
• To count from 1 to 68 would take you about thirty-four seconds.

  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 68 cubic inches would be around 0.3 feet tall.

Recreational maths with 68

• 68 backwards is 86
• The number of decimal digits it has is: 2
• The sum of 68's digits is 14
• More coming soon!