21835

Names of 21835

• Cardinal: 21835 can be written as Twenty-one thousand, eight hundred thirty-five.

Scientific notation

• Scientific notation: 2.1835 × 10⁴

Factors of 21835

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 413

Divisors of 21835

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 11 55 397 1985 4367 21835
• Sum of all divisors σ(n): 28656
• Sum of proper divisors (its aliquot sum) s(n): 6821
• 21835 is a deficient number, because the sum of its proper divisors (6821) is less than itself. Its deficiency is 15014

Bases of 21835

• Binary: 101010101001011₂
• Hexadecimal: 0x554B
• Base-36: GUJ

Squares and roots of 21835

• 21835 squared (21835²) is 476767225
• 21835 cubed (21835³) is 10410212357875
• The square root of 21835 is 147.7667080231
• The cube root of 21835 is 27.9501664625

Scales and comparisons

• 21,835 seconds is equal to 6 hours, 3 minutes, 55 seconds.
• To count from 1 to 21,835 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 21835 cubic inches would be around 2.3 feet tall.

Recreational maths with 21835

• 21835 backwards is 53812
• The number of decimal digits it has is: 5
• The sum of 21835's digits is 19
• More coming soon!