21826

Names of 21826

• Cardinal: 21826 can be written as Twenty-one thousand, eight hundred twenty-six.

Scientific notation

• Scientific notation: 2.1826 × 10⁴

Factors of 21826

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1568

Divisors of 21826

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 1559 3118 10913 21826
• Sum of all divisors σ(n): 37440
• Sum of proper divisors (its aliquot sum) s(n): 15614
• 21826 is a deficient number, because the sum of its proper divisors (15614) is less than itself. Its deficiency is 6212

Bases of 21826

• Binary: 101010101000010₂
• Hexadecimal: 0x5542
• Base-36: GUA

Squares and roots of 21826

• 21826 squared (21826²) is 476374276
• 21826 cubed (21826³) is 10397344947976
• The square root of 21826 is 147.7362514753
• The cube root of 21826 is 27.9463257469

Scales and comparisons

• 21,826 seconds is equal to 6 hours, 3 minutes, 46 seconds.
• To count from 1 to 21,826 would take you about six 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 21826 cubic inches would be around 2.3 feet tall.

Recreational maths with 21826

• 21826 backwards is 62812
• The number of decimal digits it has is: 5
• The sum of 21826's digits is 19
• More coming soon!