21026

Names of 21026

• Cardinal: 21026 can be written as Twenty-one thousand and twenty-six.

Scientific notation

• Scientific notation: 2.1026 × 10⁴

Factors of 21026

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10515

Divisors of 21026

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10513 21026
• Sum of all divisors σ(n): 31542
• Sum of proper divisors (its aliquot sum) s(n): 10516
• 21026 is a deficient number, because the sum of its proper divisors (10516) is less than itself. Its deficiency is 10510

Bases of 21026

• Binary: 101001000100010₂
• Hexadecimal: 0x5222
• Base-36: G82

Squares and roots of 21026

• 21026 squared (21026²) is 442092676
• 21026 cubed (21026³) is 9295440605576
• The square root of 21026 is 145.0034482349
• The cube root of 21026 is 27.6006231043

Scales and comparisons

• 21,026 seconds is equal to 5 hours, 50 minutes, 26 seconds.
• To count from 1 to 21,026 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 21026 cubic inches would be around 2.3 feet tall.

Recreational maths with 21026

• 21026 backwards is 62012
• The number of decimal digits it has is: 5
• The sum of 21026's digits is 11
• More coming soon!