21088

Names of 21088

• Cardinal: 21088 can be written as Twenty-one thousand and eighty-eight.

Scientific notation

• Scientific notation: 2.1088 × 10⁴

Factors of 21088

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 661

Divisors of 21088

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 8 16 32 659 1318 2636 5272 10544 21088
• Sum of all divisors σ(n): 41580
• Sum of proper divisors (its aliquot sum) s(n): 20492
• 21088 is a deficient number, because the sum of its proper divisors (20492) is less than itself. Its deficiency is 596

Bases of 21088

• Binary: 101001001100000₂
• Hexadecimal: 0x5260
• Base-36: G9S

Squares and roots of 21088

• 21088 squared (21088²) is 444703744
• 21088 cubed (21088³) is 9377912553472
• The square root of 21088 is 145.2170788853
• The cube root of 21088 is 27.6277254125

Scales and comparisons

• 21,088 seconds is equal to 5 hours, 51 minutes, 28 seconds.
• To count from 1 to 21,088 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 21088 cubic inches would be around 2.3 feet tall.

Recreational maths with 21088

• 21088 backwards is 88012
• The number of decimal digits it has is: 5
• The sum of 21088's digits is 19
• More coming soon!