21641109

Names of 21641109

• Cardinal: 21641109 can be written as Twenty-one million, six hundred forty-one thousand, one hundred nine.

Scientific notation

• Scientific notation: 2.1641109 × 10⁷

Factors of 21641109

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1030539

Divisors of 21641109

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 7 21 1030529 3091587 7213703 21641109
• Sum of all divisors σ(n): 32976960
• Sum of proper divisors (its aliquot sum) s(n): 11335851
• 21641109 is a deficient number, because the sum of its proper divisors (11335851) is less than itself. Its deficiency is 10305258

Bases of 21641109

• Binary: 1010010100011011110010101₂
• Hexadecimal: 0x14A3795
• Base-36: CVUDX

Squares and roots of 21641109

• 21641109 squared (21641109²) is 468337598749881
• 21641109 cubed (21641109³) is 10135345023344438458029
• The square root of 21641109 is 4652.0005374033
• The cube root of 21641109 is 278.6718949733

Scales and comparisons

• 21,641,109 seconds is equal to 35 weeks, 5 days, 11 hours, 25 minutes, 9 seconds.
• To count from 1 to 21,641,109 would take you about four days!

  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 21641109 cubic inches would be around 23.2 feet tall.

Recreational maths with 21641109

• 21641109 backwards is 90114612
• The number of decimal digits it has is: 8
• The sum of 21641109's digits is 24
• More coming soon!