171

Names of 171

• Cardinal: 171 can be written as One hundred seventy-one.

Scientific notation

• Scientific notation: 1.71 × 10²

Factors of 171

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 22

Divisors of 171

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 9 19 57 171
• Sum of all divisors σ(n): 260
• Sum of proper divisors (its aliquot sum) s(n): 89
• 171 is a deficient number, because the sum of its proper divisors (89) is less than itself. Its deficiency is 82

Bases of 171

• Binary: 10101011₂
• Hexadecimal: 0xAB
• Base-36: 4R

Squares and roots of 171

• 171 squared (171²) is 29241
• 171 cubed (171³) is 5000211
• The square root of 171 is 13.0766968307
• The cube root of 171 is 5.5504991029

Scales and comparisons

• 171 seconds is equal to 2 minutes, 51 seconds.
• To count from 1 to 171 would take you about twenty-five 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 171 cubic inches would be around 0.5 feet tall.

Recreational maths with 171

• 171 is the same when its digits are reversed! That makes it a palindromic number.
• 171 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 171's digits is 9
• More coming soon!