19445

Names of 19445

• Cardinal: 19445 can be written as Nineteen thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 1.9445 × 10⁴

Factors of 19445

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3894

Divisors of 19445

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 3889 19445
• Sum of all divisors σ(n): 23340
• Sum of proper divisors (its aliquot sum) s(n): 3895
• 19445 is a deficient number, because the sum of its proper divisors (3895) is less than itself. Its deficiency is 15550

Bases of 19445

• Binary: 100101111110101₂
• Hexadecimal: 0x4BF5
• Base-36: F05

Squares and roots of 19445

• 19445 squared (19445²) is 378108025
• 19445 cubed (19445³) is 7352310546125
• The square root of 19445 is 139.4453297891
• The cube root of 19445 is 26.8907335311

Scales and comparisons

• 19,445 seconds is equal to 5 hours, 24 minutes, 5 seconds.
• To count from 1 to 19,445 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 19445 cubic inches would be around 2.2 feet tall.

Recreational maths with 19445

• 19445 backwards is 54491
• The number of decimal digits it has is: 5
• The sum of 19445's digits is 23
• More coming soon!