19818128640128

Names of 19818128640128

• Cardinal: 19818128640128 can be written as Nineteen trillion, eight hundred eighteen billion, one hundred twenty-eight million, six hundred forty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.9818128640128 × 10¹³

Factors of 19818128640128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 9504

Divisors of 19818128640128

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 13 14 16 19 26 28 32 38 52 56 64 76 91 104 112 128 133 152 182 208 224 247 266 304 364 416 448 494 532 608 728 832 896 988 1064 1216 1456 1664 1729 1976 2128 2432 2912 3458 3952 4256 5824 6916 7904 8512 9463 11648 13832 15808 17024 18926 27664 31616 37852 55328 66241 75704 110656 123019 132482 151408 179797 221312 246038 264964 302816 359594 492076 529928 605632 719188 861133 984152 1059856 1211264 1258579 1438376 1722266 1968304 2119712 2337361 2517158 2876752 3444532 3936608 4239424 4674722 5034316 5753504 6889064 7873216 8478848 9349444 10068632 11507008 13778128 15746432 16361527 18698888 20137264 23014016 27556256 32723054 37397776 40274528 55112512 65446108 74795552 80549056 89548369 110225024 130892216 149591104 161098112 179096738 261784432 299182208 358193476 523568864 626838583 716386952 1047137728 1164128797 1253677166 1432773904 1701419011 2094275456 2328257594 2507354332 2865547808 3402838022 4656515188 5014708664 5731095616 6805676044 8148901579 9313030376 10029417328 11462191232 11909933077 13611352088 16297803158 18626060752 20058834656 22118447143 23819866154 27222704176 32595606316 37252121504 40117669312 44236894286 47639732308 54445408352 65191212632 74504243008 80235338624 88473788572 95279464616 108890816704 130382425264 149008486016 154829130001 176947577144 190558929232 217781633408 260764850528 309658260002 353895154288 381117858464 521529701056 619316520004 707790308576 762235716928 1043059402112 1238633040008 1415580617152 1524471433856 2477266080016 2831161234304 4954532160032 9909064320064 19818128640128
• Sum of all divisors σ(n): 51155434209600
• Sum of proper divisors (its aliquot sum) s(n): 31337305569472
• 19818128640128 is an abundant number, because the sum of its proper divisors (31337305569472) is greater than itself. Its abundance is 11519176929344

Bases of 19818128640128

• Binary: 100100000011001000100100001001000100010000000₂
• Hexadecimal: 0x120644848880
• Base-36: 70WBM3Q0W

Squares and roots of 19818128640128

• 19818128640128 squared (19818128640128²) is 392758222796661690531856384
• 19818128640128 cubed (19818128640128³) is 7783732983852294998038172532505315377152
• The square root of 19818128640128 is 4451755.6806419645
• The cube root of 19818128640128 is 27061.6463574351

Scales and comparisons

• 19,818,128,640,128 seconds is equal to 630,155 years, 9 weeks, 5 days, 21 hours, 22 minutes, 8 seconds.
• To count from 1 to 19,818,128,640,128 would take you about one million, five hundred seventy-five thousand, three hundred eighty-seven 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 19818128640128 cubic inches would be around 2255.1 feet tall.

Recreational maths with 19818128640128

• 19818128640128 backwards is 82104682181891
• The number of decimal digits it has is: 14
• The sum of 19818128640128's digits is 59
• More coming soon!