21499

Names of 21499

• Cardinal: 21499 can be written as Twenty-one thousand, four hundred ninety-nine.

Scientific notation

• Scientific notation: 2.1499 × 10⁴

Factors of 21499

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21499

Divisors of 21499

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21499
• Sum of all divisors σ(n): 21500
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21499 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21498

Bases of 21499

• Binary: 101001111111011₂
• Hexadecimal: 0x53FB
• Base-36: GL7

Squares and roots of 21499

• 21499 squared (21499²) is 462207001
• 21499 cubed (21499³) is 9936988314499
• The square root of 21499 is 146.6253729749
• The cube root of 21499 is 27.8060577177

Scales and comparisons

• 21,499 seconds is equal to 5 hours, 58 minutes, 19 seconds.
• To count from 1 to 21,499 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 21499 cubic inches would be around 2.3 feet tall.

Recreational maths with 21499

• 21499 backwards is 99412
• The number of decimal digits it has is: 5
• The sum of 21499's digits is 25
• More coming soon!