4454921721

Names of 4454921721

• Cardinal: 4454921721 can be written as Four billion, four hundred fifty-four million, nine hundred twenty-one thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.454921721 × 10⁹

Factors of 4454921721

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 725375

Divisors of 4454921721

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 2053 6159 723319 2169957 1484973907 4454921721
• Sum of all divisors σ(n): 5942797120
• Sum of proper divisors (its aliquot sum) s(n): 1487875399
• 4454921721 is a deficient number, because the sum of its proper divisors (1487875399) is less than itself. Its deficiency is 2967046322

Bases of 4454921721

• Binary: 100001001100010001011010111111001₂
• Hexadecimal: 0x10988B5F9
• Base-36: 21OCFLL

Squares and roots of 4454921721

• 4454921721 squared (4454921721²) is 19846327540237601841
• 4454921721 cubed (4454921721³) is 88413835641084993942420488361
• The square root of 4454921721 is 66745.1999847181
• The cube root of 4454921721 is 1645.4323282957

Scales and comparisons

• 4,454,921,721 seconds is equal to 141 years, 33 weeks, 6 days, 14 hours, 15 minutes, 21 seconds.
• To count from 1 to 4,454,921,721 would take you about two hundred eighty-three 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 4454921721 cubic inches would be around 137.1 feet tall.

Recreational maths with 4454921721

• 4454921721 backwards is 1271294544
• The number of decimal digits it has is: 10
• The sum of 4454921721's digits is 39
• More coming soon!