166561

Names of 166561

• Cardinal: 166561 can be written as One hundred sixty-six thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 1.66561 × 10⁵

Factors of 166561

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 166561

Divisors of 166561

• Number of divisors d(n): 2
• Complete list of divisors:
  1 166561
• Sum of all divisors σ(n): 166562
• Sum of proper divisors (its aliquot sum) s(n): 1
• 166561 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 166560

Bases of 166561

• Binary: 101000101010100001₂
• Hexadecimal: 0x28AA1
• Base-36: 3KIP

Squares and roots of 166561

• 166561 squared (166561²) is 27742566721
• 166561 cubed (166561³) is 4620829655616481
• The square root of 166561 is 408.1188552371
• The cube root of 166561 is 55.0204882347

Scales and comparisons

• 166,561 seconds is equal to 1 day, 22 hours, 16 minutes, 1 second.
• To count from 1 to 166,561 would take you about twenty-two 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 166561 cubic inches would be around 4.6 feet tall.

Recreational maths with 166561

• 166561 backwards is 165661
• The number of decimal digits it has is: 6
• The sum of 166561's digits is 25
• More coming soon!