81746743008

Names of 81746743008

• Cardinal: 81746743008 can be written as Eighty-one billion, seven hundred forty-six million, seven hundred forty-three thousand and eight.

Scientific notation

• Scientific notation: 8.1746743008 × 10¹⁰

Factors of 81746743008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 121646951

Divisors of 81746743008

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 121646939 243293878 364940817 486587756 729881634 851528573 973175512 1459763268 1703057146 1946351024 2554585719 2919526536 3406114292 3892702048 5109171438 5839053072 6812228584 10218342876 11678106144 13624457168 20436685752 27248914336 40873371504 81746743008
• Sum of all divisors σ(n): 245240231040
• Sum of proper divisors (its aliquot sum) s(n): 163493488032
• 81746743008 is an abundant number, because the sum of its proper divisors (163493488032) is greater than itself. Its abundance is 81746745024

Bases of 81746743008

• Binary: 1001100001000011111000100111011100000₂
• Hexadecimal: 0x13087C4EE0
• Base-36: 11JXWELC

Squares and roots of 81746743008

• 81746743008 squared (81746743008²) is 6682529992415996888064
• 81746743008 cubed (81746743008³) is 546275061933282686636695550656512
• The square root of 81746743008 is 285913.8734094587
• The cube root of 81746743008 is 4340.0042297167

Scales and comparisons

• 81,746,743,008 seconds is equal to 2,599 years, 15 weeks, 1 day, 20 hours, 36 minutes, 48 seconds.
• To count from 1 to 81,746,743,008 would take you about five thousand, one hundred ninety-eight 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 81746743008 cubic inches would be around 361.7 feet tall.

Recreational maths with 81746743008

• 81746743008 backwards is 80034764718
• 81746743008 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81746743008's digits is 48
• More coming soon!