81343659332

Names of 81343659332

• Cardinal: 81343659332 can be written as Eighty-one billion, three hundred forty-three million, six hundred fifty-nine thousand, three hundred thirty-two.

Scientific notation

• Scientific notation: 8.1343659332 × 10¹⁰

Factors of 81343659332

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 142

Divisors of 81343659332

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 13 19 26 38 47 52 61 76 94 122 169 188 244 247 338 494 611 676 793 893 988 1159 1222 1586 1786 2209 2318 2444 2867 3172 3211 3572 4418 4636 5734 6422 7943 8836 10309 11468 11609 12844 15067 15886 20618 23218 28717 30134 31772 37271 41236 41971 46436 54473 57434 60268 74542 83942 103823 108946 114868 134749 149084 150917 167884 195871 207646 217892 269498 301834 373321 391742 415292 484523 538996 545623 603668 708149 746642 783484 969046 1091246 1349699 1416298 1493284 1751737 1938092 1972637 2182492 2560231 2699398 2832596 3503474 3945274 5120462 5398796 6333203 7006948 7093099 7890548 9205937 10240924 12666406 14186198 17546087 18411874 22772581 25332812 25644281 28372396 33283003 35092174 36823748 45545162 51288562 66566006 70184348 82331639 91090324 102577124 120330857 133132012 164663278 240661714 329326556 333375653 432679039 481323428 666751306 865358078 1070311307 1333502612 1564301141 1730716156 2140622614 3128602282 4281245228 6257204564 20335914833 40671829666 81343659332
• Sum of all divisors σ(n): 168501715200
• Sum of proper divisors (its aliquot sum) s(n): 87158055868
• 81343659332 is an abundant number, because the sum of its proper divisors (87158055868) is greater than itself. Its abundance is 5814396536

Bases of 81343659332

• Binary: 1001011110000011101011011110101000100₂
• Hexadecimal: 0x12F075BD44
• Base-36: 11D9WX8K

Squares and roots of 81343659332

• 81343659332 squared (81343659332²) is 6616790913520470686224
• 81343659332 cubed (81343659332³) is 538233985940482240308497321442368
• The square root of 81343659332 is 285208.0982931585
• The cube root of 81343659332 is 4332.8591209961

Scales and comparisons

• 81,343,659,332 seconds is equal to 2,586 years, 24 weeks, 5 days, 12 hours, 55 minutes, 32 seconds.
• To count from 1 to 81,343,659,332 would take you about five thousand, one hundred seventy-two 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 81343659332 cubic inches would be around 361.1 feet tall.

Recreational maths with 81343659332

• 81343659332 backwards is 23395634318
• 81343659332 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81343659332's digits is 47
• More coming soon!