18818988620985

Names of 18818988620985

• Cardinal: 18818988620985 can be written as Eighteen trillion, eight hundred eighteen billion, nine hundred eighty-eight million, six hundred twenty thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 1.8818988620985 × 10¹³

Factors of 18818988620985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 233

Divisors of 18818988620985

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 19 21 27 35 45 49 57 63 95 105 133 135 147 171 189 199 245 285 315 361 399 441 513 597 665 735 855 931 945 995 1083 1197 1323 1393 1791 1805 1995 2205 2527 2565 2793 2985 3249 3591 3781 4179 4655 5373 5415 5985 6615 6965 7581 8379 8955 9747 9751 11343 12537 12635 13965 16245 17689 17955 18905 20895 22743 25137 26467 26865 29253 34029 37611 37905 39601 41895 48735 48755 53067 56715 62685 68229 71839 79401 87759 88445 102087 113715 118803 125685 132335 146265 159201 170145 185269 188055 198005 215517 238203 263277 265335 277207 341145 356409 359195 397005 438795 477603 502873 510435 555807 594015 646551 714609 752419 796005 831621 926345 1069227 1077585 1191015 1316385 1386035 1508619 1667421 1782045 1939653 1940449 2257257 2388015 2494863 2514365 2779035 3232755 3520111 3573045 3762095 4158105 4525857 5002263 5266933 5346135 5821347 6771771 7484589 7543095 7880599 8337105 9698265 9702245 10560333 11286285 12474315 13577571 14295961 15800799 17464041 17600555 20315313 22629285 23641797 25011315 26334665 29106735 31680999 33858855 36868531 37422945 39402995 42887883 47402397 52392123 52801665 55164193 67887855 70925391 71479805 79003995 87320205 95042997 100071727 101576565 110605593 118208985 128663649 142207191 149731381 158404995 165492579 184342655 212776173 214439415 237011985 261960615 275820965 300215181 331816779 354626955 385990947 386149351 449194143 475214985 496477737 500358635 553027965 643318245 700502089 711035955 748656905 827462895 900645543 995450337 1048119667 1063880865 1158448053 1347582429 1489433211 1501075905 1659083895 1929954735 1930746755 2101506267 2245970715 2482388685 2701936629 2844896239 3144359001 3475344159 3502510445 4042747287 4503227715 4977251685 5240598335 5792240265 6304518801 6737912145 7336837669 7447166055 8534688717 9433077003 10426032477 10507531335 13509683145 14224481195 15721795005 17376720795 18913556403 19914273673 20213736435 22010513007 25604066151 28299231009 31522594005 36684188345 42673443585 47165385015 52130162385 59742821019 66031539021 76812198453 94567782015 99571368365 110052565035 128020330755 139399915711 141496155045 179228463057 198094617063 298714105095 330157695105 384060992265 418199747133 537685389171 696999578555 896142315285 990473085315 1254599241399 2090998735665 2688426945855 3763797724197 6272996206995 18818988620985
• Sum of all divisors σ(n): 41281758432000
• Sum of proper divisors (its aliquot sum) s(n): 22462769811015
• 18818988620985 is an abundant number, because the sum of its proper divisors (22462769811015) is greater than itself. Its abundance is 3643781190030

Bases of 18818988620985

• Binary: 100010001110110100011001000011011110010111001₂
• Hexadecimal: 0x111DA321BCB9
• Base-36: 6O5BNXL89

Squares and roots of 18818988620985

• 18818988620985 squared (18818988620985²) is 354154332716762911982370225
• 18818988620985 cubed (18818988620985³) is 6664826357469296941560298373204474171625
• The square root of 18818988620985 is 4338085.8245296393
• The cube root of 18818988620985 is 26599.0071712771

Scales and comparisons

• 18,818,988,620,985 seconds is equal to 598,385 years, 32 weeks, 4 days, 7 hours, 9 minutes, 45 seconds.
• To count from 1 to 18,818,988,620,985 would take you about one million, four hundred ninety-five thousand, nine hundred sixty-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 18818988620985 cubic inches would be around 2216.6 feet tall.

Recreational maths with 18818988620985

• 18818988620985 backwards is 58902688981881
• The number of decimal digits it has is: 14
• The sum of 18818988620985's digits is 81
• More coming soon!