13181321710881

Names of 13181321710881

• Cardinal: 13181321710881 can be written as Thirteen trillion, one hundred eighty-one billion, three hundred twenty-one million, seven hundred ten thousand, eight hundred eighty-one.

Scientific notation

• Scientific notation: 1.3181321710881 × 10¹³

Factors of 13181321710881

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2911

Divisors of 13181321710881

• Number of divisors d(n): 63
• Complete list of divisors:
  1 3 9 27 47 81 141 243 423 729 1269 2209 2861 3807 6627 8583 11421 19881 25749 34263 59643 77247 134467 178929 231741 403401 536787 695223 1210203 1610361 2085669 3630609 6319949 8185321 10891827 18959847 24555963 32675481 56879541 73667889 98026443 170638623 221003667 384710087 511915869 663011001 1154130261 1535747607 1989033003 3462390783 4607242821 5967099009 10387172349 18081374089 31161517047 54244122267 93484551141 162732366801 280453653423 488197100403 1464591301209 4393773903627 13181321710881
• Sum of all divisors σ(n): 20199436830883
• Sum of proper divisors (its aliquot sum) s(n): 7018115120002
• 13181321710881 is a deficient number, because the sum of its proper divisors (7018115120002) is less than itself. Its deficiency is 6163206590879

Bases of 13181321710881

• Binary: 10111111110100000011111111111000110100100001₂
• Hexadecimal: 0xBFD03FF8D21
• Base-36: 4O7EYM529

Squares and roots of 13181321710881

• 13181321710881 squared (13181321710881²) is 173747242045742812953796161
• 13181321710881 cubed (13181321710881³) is 2290218293783245873706641982116249727841
• 13181321710881 is a perfect square number. Its square root is 3630609
• The cube root of 13181321710881 is 23622.1625279003

Scales and comparisons

• 13,181,321,710,881 seconds is equal to 419,125 years, 13 weeks, 2 days, 21 hours, 1 minute, 21 seconds.
• To count from 1 to 13,181,321,710,881 would take you about one million, forty-seven thousand, eight hundred thirteen 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 13181321710881 cubic inches would be around 1968.5 feet tall.

Recreational maths with 13181321710881

• 13181321710881 backwards is 18801712318131
• The number of decimal digits it has is: 14
• The sum of 13181321710881's digits is 45
• More coming soon!