21078045991002

Names of 21078045991002

• Cardinal: 21078045991002 can be written as Twenty-one trillion, seventy-eight billion, forty-five million, nine hundred ninety-one thousand and two.

Scientific notation

• Scientific notation: 2.1078045991002 × 10¹³

Factors of 21078045991002

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 22427

Divisors of 21078045991002

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 49 66 77 78 91 98 143 147 154 182 231 273 286 294 429 462 539 546 637 858 1001 1078 1274 1617 1911 2002 3003 3234 3822 6006 7007 14014 21021 22391 42042 44782 67173 134346 156737 246301 291083 313474 470211 492602 582166 738903 873249 940422 1097159 1477806 1724107 1746498 2037581 2194318 3201913 3291477 3448214 4075162 5172321 6112743 6403826 6582954 9605739 10344642 12068749 12225486 14263067 19211478 22413391 24137498 28526134 36206247 42789201 44826782 67240173 72412494 85578402 134480346 156893737 313787474 470681211 501356881 941362422 1002713762 1504070643 3008141286 3509498167 5514925691 6517639453 7018996334 10528494501 11029851382 13035278906 16544777073 19552918359 21056989002 24566487169 33089554146 38604479837 39105836718 45623476171 49132974338 71694033983 73699461507 77208959674 91246952342 115813439511 136870428513 143388067966 147398923014 215082101949 231626879022 270231358859 273740857026 319364333197 430164203898 501858237881 540462717718 638728666394 810694076577 958092999591 1003716475762 1505574713643 1621388153154 1916185999182 3011149427286 3513007665167 7026015330334 10539022995501 21078045991002
• Sum of all divisors σ(n): 57614495018976
• Sum of proper divisors (its aliquot sum) s(n): 36536449027974
• 21078045991002 is an abundant number, because the sum of its proper divisors (36536449027974) is greater than itself. Its abundance is 15458403036972

Bases of 21078045991002

• Binary: 100110010101110011101011100011010000001011010₂
• Hexadecimal: 0x132B9D71A05A
• Base-36: 7GZ4CD3RU

Squares and roots of 21078045991002

• 21078045991002 squared (21078045991002²) is 444284022798795484264964004
• 21078045991002 cubed (21078045991002³) is 9364639065620392324785625697240037892008
• The square root of 21078045991002 is 4591083.3134459671
• The cube root of 21078045991002 is 27623.3777595741

Scales and comparisons

• 21,078,045,991,002 seconds is equal to 670,216 years, 34 weeks, 3 days, 15 hours, 16 minutes, 42 seconds.
• To count from 1 to 21,078,045,991,002 would take you about one million, six hundred seventy-five thousand, five hundred forty-one 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 21078045991002 cubic inches would be around 2301.9 feet tall.

Recreational maths with 21078045991002

• 21078045991002 backwards is 20019954087012
• The number of decimal digits it has is: 14
• The sum of 21078045991002's digits is 48
• More coming soon!