1681638068710845

Names of 1681638068710845

• Cardinal: 1681638068710845 can be written as One quadrillion, six hundred eighty-one trillion, six hundred thirty-eight billion, sixty-eight million, seven hundred ten thousand, eight hundred forty-five.

Scientific notation

• Scientific notation: 1.681638068710845 × 10¹⁵

Factors of 1681638068710845

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5141

Divisors of 1681638068710845

• Number of divisors d(n): 378
• Complete list of divisors:
  1 3 5 7 9 15 19 21 27 35 45 49 57 63 81 95 105 133 135 147 171 189 243 245 285 315 361 399 405 441 513 567 665 729 735 855 931 945 1083 1197 1215 1323 1539 1701 1805 1995 2205 2527 2565 2793 2835 3249 3591 3645 3969 4617 4655 5103 5107 5415 5985 6615 7581 7695 8379 8505 9747 10773 11907 12635 13851 13965 15321 16245 17689 17955 19845 22743 23085 25137 25515 25535 29241 32319 35721 35749 37905 41895 45963 48735 53067 53865 59535 68229 69255 75411 76605 87723 88445 96957 97033 107247 113715 125685 137889 146205 159201 161595 178605 178745 204687 226233 229815 250243 263169 265335 291099 321741 341145 377055 413667 438615 477603 484785 485165 536235 614061 678699 679231 689445 750729 796005 873297 965223 1023435 1131165 1241001 1251215 1315845 1432809 1455495 1608705 1842183 1843627 2037693 2068335 2252187 2388015 2619891 2895669 3070305 3393495 3396155 3723003 3753645 4298427 4366485 4754617 4826115 5530881 6113079 6205005 6756561 7164045 7859673 8687007 9210915 9218135 10188465 11260935 12895281 12905389 13099455 14263851 14478345 16592643 18339237 18615015 20269683 21492135 23579019 23773085 26061021 26081449 27654405 30565395 33782805 38716167 39298365 42791553 43435035 49777929 55017711 60809049 64476405 64526945 70737057 71319255 78244347 82963215 90337723 91696185 101348415 116148501 117895095 128374659 130305105 130407245 149333787 165053133 182427147 182570143 193580835 213957765 234733041 248889645 271013169 275088555 304045245 348445503 353685285 385123977 391221735 448001361 451688615 495159399 495547531 547710429 580742505 641873295 704199123 746668935 813039507 825265665 912135735 912850715 1045336509 1155371931 1173665205 1277991001 1344004083 1355065845 1486642593 1643131287 1742227515 1925619885 2112597369 2240006805 2439118521 2475796995 2477737655 2738552145 3136009527 3466115793 3468832717 3520995615 3833973003 4065197535 4459927779 4929393861 5226682545 5776859655 6337792107 6389955005 6720020415 7317355563 7433212965 8215656435 9408028581 9415403089 10406498151 10562986845 11501919009 12195592605 13379783337 14788181583 15680047635 17330578965 17344163585 19013376321 19169865015 21952066689 22299638895 24281829019 24646969305 28246209267 31219494453 31688960535 34505757027 36586777815 40139350011 44364544749 47040142905 47077015445 52032490755 57509595045 65856200067 65907821623 66898916685 72845487057 73940907915 84738627801 93658483359 95066881605 103517271081 109760333445 120418050033 121409145095 133093634247 141231046335 156097472265 172528785135 197723464869 200696750055 218536461171 221822723745 254215883403 280975450077 310551813243 329281000335 329539108115 361254150099 364227435285 423693139005 461354751361 468292416795 517586355405 593170394607 602090250165 655609383513 665468171235 762647650209 842926350231 931655439729 988617324345 1092682305855 1271079417015 1384064254083 1404877250385 1552759066215 1779511183821 1806270750495 1966828150539 2287942950627 2306773756805 2528779050693 2965851973035 3278046917565 3813238251045 4152192762249 4214631751155 4658277198645 5338533551463 5900484451617 6863828851881 6920321270415 8897555919105 9834140752695 11439714753135 12456578286747 12643895253465 16015600654389 17701453354851 20760963811245 26692667757315 29502422258085 34319144259405 37369734860241 48046801963167 62282891433735 80078003271945 88507266774255 112109204580723 186848674301205 240234009815835 336327613742169 560546022903615 1681638068710845
• Sum of all divisors σ(n): 3715249691383902
• Sum of proper divisors (its aliquot sum) s(n): 2033611622673057
• 1681638068710845 is an abundant number, because the sum of its proper divisors (2033611622673057) is greater than itself. Its abundance is 351973553962212

Bases of 1681638068710845

• Binary: 101111110010111000011011111101110011110110110111101₂
• Hexadecimal: 0x5F970DFB9EDBD
• Base-36: GK39V3I2T9

Squares and roots of 1681638068710845

• 1681638068710845 squared (1681638068710845²) is 2827906594137540649400220614025
• 1681638068710845 cubed (1681638068710845³) is 4755515383460117246838552435065674526076601125
• The square root of 1681638068710845 is 41007780.5874793107
• The cube root of 1681638068710845 is 118917.0636178471

Scales and comparisons

• 1,681,638,068,710,845 seconds is equal to 53,470,888 years, 48 weeks, 5 days, 1 hour, 45 seconds.
• To count from 1 to 1,681,638,068,710,845 would take you about one hundred sixty million, four hundred twelve thousand, six hundred sixty-six 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 1681638068710845 cubic inches would be around 9909.8 feet tall.

Recreational maths with 1681638068710845

• 1681638068710845 backwards is 5480178608361861
• The number of decimal digits it has is: 16
• The sum of 1681638068710845's digits is 72
• More coming soon!