81743089142

Names of 81743089142

• Cardinal: 81743089142 can be written as Eighty-one billion, seven hundred forty-three million, eighty-nine thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 8.1743089142 × 10¹⁰

Factors of 81743089142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 188

Divisors of 81743089142

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 11 13 22 23 26 46 139 143 169 253 278 286 299 338 506 529 598 1058 1529 1807 1859 2197 3058 3197 3289 3614 3718 3887 4394 5819 6394 6578 6877 7774 11638 12167 13754 19877 23491 24167 24334 35167 39754 41561 42757 46982 48334 50531 70334 73531 75647 83122 85514 89401 101062 133837 147062 151294 158171 178802 258401 267674 305383 316342 457171 516802 540293 555841 610766 808841 914342 955903 983411 1080586 1111682 1162213 1617682 1691213 1739881 1911806 1966822 2056223 2324426 3359213 3382426 3479762 4112446 5943223 6718426 7023809 10514933 11886446 12426739 12784343 14047618 18603343 21029866 21985769 22618453 24853478 25568686 26730899 37206686 43971538 45236906 53461798 77261899 136694129 154523798 161547607 241843459 273388258 285814997 294039889 323095214 483686918 571629994 588079778 1777023677 3143964967 3554047354 3715594961 6287929934 7431189922 40871544571 81743089142
• Sum of all divisors σ(n): 152578944000
• Sum of proper divisors (its aliquot sum) s(n): 70835854858
• 81743089142 is a deficient number, because the sum of its proper divisors (70835854858) is less than itself. Its deficiency is 10907234284

Bases of 81743089142

• Binary: 1001100001000010001001000110111110110₂
• Hexadecimal: 0x1308448DF6
• Base-36: 11JVQ392

Squares and roots of 81743089142

• 81743089142 squared (81743089142²) is 6681932622476958296164
• 81743089142 cubed (81743089142³) is 546201813999971834844350288651288
• The square root of 81743089142 is 285907.4835361957
• The cube root of 81743089142 is 4339.9395664671

Scales and comparisons

• 81,743,089,142 seconds is equal to 2,599 years, 9 weeks, 1 day, 13 hours, 39 minutes, 2 seconds.
• To count from 1 to 81,743,089,142 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 81743089142 cubic inches would be around 361.7 feet tall.

Recreational maths with 81743089142

• 81743089142 backwards is 24198034718
• The number of decimal digits it has is: 11
• The sum of 81743089142's digits is 47
• More coming soon!