840821939047129

Names of 840821939047129

• Cardinal: 840821939047129 can be written as Eight hundred forty trillion, eight hundred twenty-one billion, nine hundred thirty-nine million, forty-seven thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 8.40821939047129 × 10¹⁴

Factors of 840821939047129

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1463

Divisors of 840821939047129

• Number of divisors d(n): 120
• Complete list of divisors:
  1 13 31 97 169 313 403 961 1009 1261 2197 3007 4069 5239 9703 12493 13117 16393 28561 30361 31279 39091 52897 68107 93217 97873 126139 162409 170521 213109 300793 315817 394693 406627 508183 687661 885391 941191 969649 1211821 1272349 1639807 2111317 2216773 2770417 3034063 3910309 4105621 5131009 5286151 6606379 8939593 9790327 12235483 12605437 15753673 16540537 21317491 27447121 28818049 29176921 30634249 39442819 50834017 53373073 66703117 68719963 85882927 94055953 127274251 159061279 163870681 204797749 215026981 277127383 303500137 379299973 398245237 512756647 660842221 693849949 867140521 893359519 949661719 1222727389 1654565263 2067796627 2130318853 2662370737 2795350753 3945501781 4930899649 5177188081 6665836411 8590948873 9020049337 12345602347 15895456057 21509348419 26881356151 27694145089 29439513289 51291523153 64101695437 67303445053 86655873343 160492830511 206640928741 279621529447 382713672757 666789800989 833322040681 874944785689 2086406796643 2686332073633 4975277745841 8668267412857 27123288356359 64678610695933 840821939047129
• Sum of all divisors σ(n): 954906153204360
• Sum of proper divisors (its aliquot sum) s(n): 114084214157231
• 840821939047129 is a deficient number, because the sum of its proper divisors (114084214157231) is less than itself. Its deficiency is 726737724889898

Bases of 840821939047129

• Binary: 10111111001011100100011100111111110000101011011001₂
• Hexadecimal: 0x2FCB91CFF0AD9
• Base-36: 8A1O9L4NVD

Squares and roots of 840821939047129

• 840821939047129 squared (840821939047129²) is 706981533182973915328483142641
• 840821939047129 cubed (840821939047129³) is 594445583601420301950297395579735282928527689
• The square root of 840821939047129 is 28996929.8210539697
• The cube root of 840821939047129 is 94384.6446287193

Scales and comparisons

• 840,821,939,047,129 seconds is equal to 26,735,536 years, 43 weeks, 15 hours, 18 minutes, 49 seconds.
• To count from 1 to 840,821,939,047,129 would take you about sixty-six million, eight hundred thirty-eight thousand, eight hundred forty-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 840821939047129 cubic inches would be around 7865.4 feet tall.

Recreational maths with 840821939047129

• 840821939047129 backwards is 921740939128048
• The number of decimal digits it has is: 15
• The sum of 840821939047129's digits is 67
• More coming soon!