66401

Names of 66401

• Cardinal: 66401 can be written as Sixty-six thousand, four hundred one.

Scientific notation

• Scientific notation: 6.6401 × 10⁴

Factors of 66401

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2910

Divisors of 66401

• Number of divisors d(n): 4
• Complete list of divisors:
  1 23 2887 66401
• Sum of all divisors σ(n): 69312
• Sum of proper divisors (its aliquot sum) s(n): 2911
• 66401 is a deficient number, because the sum of its proper divisors (2911) is less than itself. Its deficiency is 63490

Bases of 66401

• Binary: 10000001101100001₂
• Hexadecimal: 0x10361
• Base-36: 1F8H

Squares and roots of 66401

• 66401 squared (66401²) is 4409092801
• 66401 cubed (66401³) is 292768171079201
• The square root of 66401 is 257.6839149035
• The cube root of 66401 is 40.4940803217

Scales and comparisons

• 66,401 seconds is equal to 18 hours, 26 minutes, 41 seconds.
• To count from 1 to 66,401 would take you about eighteen 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 66401 cubic inches would be around 3.4 feet tall.

Recreational maths with 66401

• 66401 backwards is 10466
• The number of decimal digits it has is: 5
• The sum of 66401's digits is 17
• More coming soon!