3191990821

Names of 3191990821

• Cardinal: 3191990821 can be written as Three billion, one hundred ninety-one million, nine hundred ninety thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 3.191990821 × 10⁹

Factors of 3191990821

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 57143

Divisors of 3191990821

• Number of divisors d(n): 8
• Complete list of divisors:
  1 29 1997 55117 57913 1598393 110068649 3191990821
• Sum of all divisors σ(n): 3303772920
• Sum of proper divisors (its aliquot sum) s(n): 111782099
• 3191990821 is a deficient number, because the sum of its proper divisors (111782099) is less than itself. Its deficiency is 3080208722

Bases of 3191990821

• Binary: 10111110010000011110101000100101₂
• Hexadecimal: 0xBE41EA25
• Base-36: 1GSFFVP

Squares and roots of 3191990821

• 3191990821 squared (3191990821²) is 10188805401348254041
• 3191990821 cubed (3191990821³) is 32522573318058847923248157661
• The square root of 3191990821 is 56497.7063339743
• The cube root of 3191990821 is 1472.3821528477

Scales and comparisons

• 3,191,990,821 seconds is equal to 101 years, 25 weeks, 5 days, 8 hours, 7 minutes, 1 second.
• To count from 1 to 3,191,990,821 would take you about two hundred two 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 3191990821 cubic inches would be around 122.7 feet tall.

Recreational maths with 3191990821

• 3191990821 backwards is 1280991913
• The number of decimal digits it has is: 10
• The sum of 3191990821's digits is 43
• More coming soon!