1990788605

Names of 1990788605

• Cardinal: 1990788605 can be written as One billion, nine hundred ninety million, seven hundred eighty-eight thousand, six hundred five.

Scientific notation

• Scientific notation: 1.990788605 × 10⁹

Factors of 1990788605

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 30627535

Divisors of 1990788605

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 13 65 30627517 153137585 398157721 1990788605
• Sum of all divisors σ(n): 2572711512
• Sum of proper divisors (its aliquot sum) s(n): 581922907
• 1990788605 is a deficient number, because the sum of its proper divisors (581922907) is less than itself. Its deficiency is 1408865698

Bases of 1990788605

• Binary: 1110110101010010000010111111101₂
• Hexadecimal: 0x76A905FD
• Base-36: WX9IBH

Squares and roots of 1990788605

• 1990788605 squared (1990788605²) is 3963239269797846025
• 1990788605 cubed (1990788605³) is 7889971577202072520114545125
• The square root of 1990788605 is 44618.2541679973
• The cube root of 1990788605 is 1257.9838009731

Scales and comparisons

• 1,990,788,605 seconds is equal to 63 years, 15 weeks, 4 days, 12 hours, 50 minutes, 5 seconds.
• To count from 1 to 1,990,788,605 would take you about one hundred twenty-six 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 1990788605 cubic inches would be around 104.8 feet tall.

Recreational maths with 1990788605

• 1990788605 backwards is 5068870991
• The number of decimal digits it has is: 10
• The sum of 1990788605's digits is 53
• More coming soon!