81834018216

Names of 81834018216

• Cardinal: 81834018216 can be written as Eighty-one billion, eight hundred thirty-four million, eighteen thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 8.1834018216 × 10¹⁰

Factors of 81834018216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7840

Divisors of 81834018216

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 23 24 46 69 92 138 139 184 276 278 417 552 556 834 1112 1668 3197 3336 6394 7673 9591 12788 15346 19182 19321 23019 25576 30692 38364 38642 46038 57963 61384 76728 77284 92076 115926 154568 176479 184152 231852 352958 444383 463704 529437 705916 888766 1058874 1066547 1333149 1411832 1777532 2117748 2133094 2666298 3199641 3555064 4235496 4266188 5332596 6399282 8532376 10665192 12798564 24530581 25597128 49061162 73591743 98122324 147183486 148250033 196244648 294366972 296500066 444750099 588733944 593000132 889500198 1186000264 1779000396 3409750759 3558000792 6819501518 10229252277 13639003036 20458504554 27278006072 40917009108 81834018216
• Sum of all divisors σ(n): 215054948160
• Sum of proper divisors (its aliquot sum) s(n): 133220929944
• 81834018216 is an abundant number, because the sum of its proper divisors (133220929944) is greater than itself. Its abundance is 51386911728

Bases of 81834018216

• Binary: 1001100001101101100000000010110101000₂
• Hexadecimal: 0x130DB005A8
• Base-36: 11LDV0KO

Squares and roots of 81834018216

• 81834018216 squared (81834018216²) is 6696806537376619822656
• 81834018216 cubed (81834018216³) is 548026588168706191419737793501696
• The square root of 81834018216 is 286066.4576912155
• The cube root of 81834018216 is 4341.5481854385

Scales and comparisons

• 81,834,018,216 seconds is equal to 2,602 years, 3 weeks, 3 days, 23 hours, 43 minutes, 36 seconds.
• To count from 1 to 81,834,018,216 would take you about five thousand, two hundred four 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 81834018216 cubic inches would be around 361.8 feet tall.

Recreational maths with 81834018216

• 81834018216 backwards is 61281043818
• The number of decimal digits it has is: 11
• The sum of 81834018216's digits is 42
• More coming soon!