55991

Names of 55991

• Cardinal: 55991 can be written as Fifty-five thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 5.5991 × 10⁴

Factors of 55991

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 145

Divisors of 55991

• Number of divisors d(n): 8
• Complete list of divisors:
  1 13 59 73 767 949 4307 55991
• Sum of all divisors σ(n): 62160
• Sum of proper divisors (its aliquot sum) s(n): 6169
• 55991 is a deficient number, because the sum of its proper divisors (6169) is less than itself. Its deficiency is 49822

Bases of 55991

• Binary: 1101101010110111₂
• Hexadecimal: 0xDAB7
• Base-36: 177B

Squares and roots of 55991

• 55991 squared (55991²) is 3134992081
• 55991 cubed (55991³) is 175531341607271
• The square root of 55991 is 236.6241745893
• The cube root of 55991 is 38.2565739765

Scales and comparisons

• 55,991 seconds is equal to 15 hours, 33 minutes, 11 seconds.
• To count from 1 to 55,991 would take you about fifteen hours.

  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 55991 cubic inches would be around 3.2 feet tall.

Recreational maths with 55991

• 55991 backwards is 19955
• The number of decimal digits it has is: 5
• The sum of 55991's digits is 29
• More coming soon!