31780116813

Names of 31780116813

• Cardinal: 31780116813 can be written as Thirty-one billion, seven hundred eighty million, one hundred sixteen thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 3.1780116813 × 10¹⁰

Factors of 31780116813

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 10029

Divisors of 31780116813

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 19 29 57 87 551 1653 2609 7369 7827 22107 49571 75661 140011 148713 213701 226983 420033 641103 1437559 4060319 4312677 12180957 19225721 57677163 365288699 557545909 1095866097 1672637727 10593372271 31780116813
• Sum of all divisors σ(n): 46165680000
• Sum of proper divisors (its aliquot sum) s(n): 14385563187
• 31780116813 is a deficient number, because the sum of its proper divisors (14385563187) is less than itself. Its deficiency is 17394553626

Bases of 31780116813

• Binary: 11101100110001111100001100101001101₂
• Hexadecimal: 0x7663E194D
• Base-36: ELL272L

Squares and roots of 31780116813

• 31780116813 squared (31780116813²) is 1009975824647925276969
• 31780116813 cubed (31780116813³) is 32097149685617069900170198579797
• The square root of 31780116813 is 178269.7865960465
• The cube root of 31780116813 is 3167.5136594921

Scales and comparisons

• 31,780,116,813 seconds is equal to 1,010 years, 26 weeks, 3 days, 10 hours, 13 minutes, 33 seconds.
• To count from 1 to 31,780,116,813 would take you about two thousand and twenty-one 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 31780116813 cubic inches would be around 264 feet tall.

Recreational maths with 31780116813

• 31780116813 backwards is 31861108713
• The number of decimal digits it has is: 11
• The sum of 31780116813's digits is 39
• More coming soon!