2279921221

Names of 2279921221

• Cardinal: 2279921221 can be written as Two billion, two hundred seventy-nine million, nine hundred twenty-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 2.279921221 × 10⁹

Factors of 2279921221

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 134113030

Divisors of 2279921221

• Number of divisors d(n): 4
• Complete list of divisors:
  1 17 134113013 2279921221
• Sum of all divisors σ(n): 2414034252
• Sum of proper divisors (its aliquot sum) s(n): 134113031
• 2279921221 is a deficient number, because the sum of its proper divisors (134113031) is less than itself. Its deficiency is 2145808190

Bases of 2279921221

• Binary: 10000111111001001101011001000101₂
• Hexadecimal: 0x87E4D645
• Base-36: 11PEMH1

Squares and roots of 2279921221

• 2279921221 squared (2279921221²) is 5198040773966130841
• 2279921221 cubed (2279921221³) is 11851123468188646039658476861
• The square root of 2279921221 is 47748.5206158265
• The cube root of 2279921221 is 1316.1537140333

Scales and comparisons

• 2,279,921,221 seconds is equal to 72 years, 25 weeks, 4 days, 23 hours, 27 minutes, 1 second.
• To count from 1 to 2,279,921,221 would take you about one hundred forty-four years!

  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 2279921221 cubic inches would be around 109.7 feet tall.

Recreational maths with 2279921221

• 2279921221 backwards is 1221299722
• The number of decimal digits it has is: 10
• The sum of 2279921221's digits is 37
• More coming soon!