21420233

Names of 21420233

• Cardinal: 21420233 can be written as Twenty-one million, four hundred twenty thousand, two hundred thirty-three.

Scientific notation

• Scientific notation: 2.1420233 × 10⁷

Factors of 21420233

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21420233

Divisors of 21420233

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21420233
• Sum of all divisors σ(n): 21420234
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21420233 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21420232

Bases of 21420233

• Binary: 1010001101101100011001001₂
• Hexadecimal: 0x146D8C9
• Base-36: CR3YH

Squares and roots of 21420233

• 21420233 squared (21420233²) is 458826381774289
• 21420233 cubed (21420233³) is 9828168004152223789337
• The square root of 21420233 is 4628.1997580053
• The cube root of 21420233 is 277.7205799681

Scales and comparisons

• 21,420,233 seconds is equal to 35 weeks, 2 days, 22 hours, 3 minutes, 53 seconds.
• To count from 1 to 21,420,233 would take you about twenty-one 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 21420233 cubic inches would be around 23.1 feet tall.

Recreational maths with 21420233

• 21420233 backwards is 33202412
• The number of decimal digits it has is: 8
• The sum of 21420233's digits is 17
• More coming soon!