4961091721

Names of 4961091721

• Cardinal: 4961091721 can be written as Four billion, nine hundred sixty-one million, ninety-one thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.961091721 × 10⁹

Factors of 4961091721

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 105555190

Divisors of 4961091721

• Number of divisors d(n): 4
• Complete list of divisors:
  1 47 105555143 4961091721
• Sum of all divisors σ(n): 5066646912
• Sum of proper divisors (its aliquot sum) s(n): 105555191
• 4961091721 is a deficient number, because the sum of its proper divisors (105555191) is less than itself. Its deficiency is 4855536530

Bases of 4961091721

• Binary: 100100111101101000100000010001001₂
• Hexadecimal: 0x127B44089
• Base-36: 2A1PEVD

Squares and roots of 4961091721

• 4961091721 squared (4961091721²) is 24612431064174741841
• 4961091721 cubed (4961091721³) is 122104527986160531444697398361
• The square root of 4961091721 is 70435.0177184617
• The cube root of 4961091721 is 1705.5289101345

Scales and comparisons

• 4,961,091,721 seconds is equal to 157 years, 38 weeks, 6 days, 1 hour, 2 minutes, 1 second.
• To count from 1 to 4,961,091,721 would take you about three hundred fifteen 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 4961091721 cubic inches would be around 142.1 feet tall.

Recreational maths with 4961091721

• 4961091721 backwards is 1271901694
• The number of decimal digits it has is: 10
• The sum of 4961091721's digits is 40
• More coming soon!