21984069

Names of 21984069

• Cardinal: 21984069 can be written as Twenty-one million, nine hundred eighty-four thousand and sixty-nine.

Scientific notation

• Scientific notation: 2.1984069 × 10⁷

Factors of 21984069

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 7328026

Divisors of 21984069

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 7328023 21984069
• Sum of all divisors σ(n): 29312096
• Sum of proper divisors (its aliquot sum) s(n): 7328027
• 21984069 is a deficient number, because the sum of its proper divisors (7328027) is less than itself. Its deficiency is 14656042

Bases of 21984069

• Binary: 1010011110111001101000101₂
• Hexadecimal: 0x14F7345
• Base-36: D370L

Squares and roots of 21984069

• 21984069 squared (21984069²) is 483299289796761
• 21984069 cubed (21984069³) is 10624884934542989800509
• The square root of 21984069 is 4688.7172019647
• The cube root of 21984069 is 280.1362814477

Scales and comparisons

• 21,984,069 seconds is equal to 36 weeks, 2 days, 10 hours, 41 minutes, 9 seconds.
• To count from 1 to 21,984,069 would take you about two weeks!

  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 21984069 cubic inches would be around 23.3 feet tall.

Recreational maths with 21984069

• 21984069 backwards is 96048912
• The number of decimal digits it has is: 8
• The sum of 21984069's digits is 39
• More coming soon!