20401

Names of 20401

• Cardinal: 20401 can be written as Twenty thousand, four hundred one.

Scientific notation

• Scientific notation: 2.0401 × 10⁴

Factors of 20401

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 910

Divisors of 20401

• Number of divisors d(n): 4
• Complete list of divisors:
  1 23 887 20401
• Sum of all divisors σ(n): 21312
• Sum of proper divisors (its aliquot sum) s(n): 911
• 20401 is a deficient number, because the sum of its proper divisors (911) is less than itself. Its deficiency is 19490

Bases of 20401

• Binary: 100111110110001₂
• Hexadecimal: 0x4FB1
• Base-36: FQP

Squares and roots of 20401

• 20401 squared (20401²) is 416200801
• 20401 cubed (20401³) is 8490912541201
• The square root of 20401 is 142.8320692281
• The cube root of 20401 is 27.3243906233

Scales and comparisons

• 20,401 seconds is equal to 5 hours, 40 minutes, 1 second.
• To count from 1 to 20,401 would take you about five 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 20401 cubic inches would be around 2.3 feet tall.

Recreational maths with 20401

• 20401 backwards is 10402
• The number of decimal digits it has is: 5
• The sum of 20401's digits is 7
• More coming soon!