81672144654912

Names of 81672144654912

• Cardinal: 81672144654912 can be written as Eighty-one trillion, six hundred seventy-two billion, one hundred forty-four million, six hundred fifty-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 8.1672144654912 × 10¹³

Factors of 81672144654912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 60767964785

Divisors of 81672144654912

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 60767964773 121535929546 182303894319 243071859092 364607788638 425375753411 486143718184 729215577276 850751506822 972287436368 1276127260233 1458431154552 1701503013644 1944574872736 2552254520466 2916862309104 3403006027288 3889149745472 5104509040932 5833724618208 6806012054576 10209018081864 11667449236416 13612024109152 20418036163728 27224048218304 40836072327456 81672144654912
• Sum of all divisors σ(n): 246961008841536
• Sum of proper divisors (its aliquot sum) s(n): 165288864186624
• 81672144654912 is an abundant number, because the sum of its proper divisors (165288864186624) is greater than itself. Its abundance is 83616719531712

Bases of 81672144654912

• Binary: 10010100100011111000111001010111001001001000000₂
• Hexadecimal: 0x4A47C72B9240
• Base-36: SY7NY7QYO

Squares and roots of 81672144654912

• 81672144654912 squared (81672144654912²) is 6670339212532870771565727744
• 81672144654912 cubed (81672144654912³) is 544780909063316420747034684520417024278528
• The square root of 81672144654912 is 9037264.2240288625
• The cube root of 81672144654912 is 43386.8366456659

Scales and comparisons

• 81,672,144,654,912 seconds is equal to 2,596,921 years, 29 weeks, 5 days, 35 minutes, 12 seconds.
• To count from 1 to 81,672,144,654,912 would take you about six million, four hundred ninety-two thousand, three hundred three 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 81672144654912 cubic inches would be around 3615.6 feet tall.

Recreational maths with 81672144654912

• 81672144654912 backwards is 21945644127618
• The number of decimal digits it has is: 14
• The sum of 81672144654912's digits is 60
• More coming soon!