6749209821

Names of 6749209821

• Cardinal: 6749209821 can be written as Six billion, seven hundred forty-nine million, two hundred nine thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 6.749209821 × 10⁹

Factors of 6749209821

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1307435

Divisors of 6749209821

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 1723 5169 1305709 3917127 2249736607 6749209821
• Sum of all divisors σ(n): 9004176160
• Sum of proper divisors (its aliquot sum) s(n): 2254966339
• 6749209821 is a deficient number, because the sum of its proper divisors (2254966339) is less than itself. Its deficiency is 4494243482

Bases of 6749209821

• Binary: 110010010010010001100010011011101₂
• Hexadecimal: 0x19248C4DD
• Base-36: 33MAZML

Squares and roots of 6749209821

• 6749209821 squared (6749209821²) is 45551833207882852041
• 6749209821 cubed (6749209821³) is 307438880051196879612607094661
• The square root of 6749209821 is 82153.5746087777
• The cube root of 6749209821 is 1889.8078265455

Scales and comparisons

• 6,749,209,821 seconds is equal to 214 years, 31 weeks, 2 days, 20 hours, 30 minutes, 21 seconds.
• To count from 1 to 6,749,209,821 would take you about four hundred twenty-nine 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 6749209821 cubic inches would be around 157.5 feet tall.

Recreational maths with 6749209821

• 6749209821 backwards is 1289029476
• The number of decimal digits it has is: 10
• The sum of 6749209821's digits is 48
• More coming soon!