18987681791106

Names of 18987681791106

• Cardinal: 18987681791106 can be written as Eighteen trillion, nine hundred eighty-seven billion, six hundred eighty-one million, seven hundred ninety-one thousand, one hundred six.

Scientific notation

• Scientific notation: 1.8987681791106 × 10¹³

Factors of 18987681791106

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 61347

Divisors of 18987681791106

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 23 42 43 46 47 53 63 69 86 94 106 126 129 138 141 159 161 207 258 282 301 318 322 329 371 387 414 423 477 483 602 658 742 774 846 903 954 966 987 989 1081 1113 1219 1449 1806 1974 1978 2021 2162 2226 2279 2438 2491 2709 2898 2961 2967 3243 3339 3657 4042 4558 4982 5418 5922 5934 6063 6486 6678 6837 6923 7314 7473 7567 8533 8901 9729 10971 12126 13674 13846 14147 14946 15134 15953 17066 17437 17802 18189 19458 20511 20769 21942 22419 22701 25599 28294 31906 34874 36378 41022 41538 42441 44838 45402 46483 47859 51198 52311 52417 57293 61169 62307 68103 76797 84882 92966 95718 104622 104834 107113 114586 122338 124614 127323 136206 139449 143577 153594 156933 157251 171879 183507 214226 254646 278898 287154 313866 314502 321339 325381 343758 366919 367014 401051 418347 428183 471753 515637 550521 642678 650762 733838 749791 802102 836694 856366 943506 964017 976143 1031274 1100757 1101042 1203153 1284549 1406887 1499582 1928034 1952286 2201514 2249373 2406306 2463599 2569098 2630267 2813774 2874943 2928429 3241957 3302271 3609459 3853647 4220661 4498746 4927198 5260534 5749886 5856858 6483914 6604542 6748119 7218918 7390797 7707294 7890801 8441322 8624829 9725871 9848209 12661983 13496238 14781594 15781602 17245193 17249658 18411869 19451742 19696418 20124601 22172391 22693699 23672403 25323966 25874487 29177613 29544627 34490386 36823738 40249202 44344782 45387398 47344806 51735579 51748974 55235607 58355226 59089254 60373803 60496141 66123689 68081097 74565011 88633881 103471158 110471214 120747606 120992282 123622549 132247378 136162194 139404151 149130022 152371979 155206737 165706821 177267762 181121409 181488423 198371067 204243291 223695033 247245098 278808302 304743958 310413474 331413642 362242818 362976846 370867647 396742134 408486582 418212453 423472987 447390066 457115937 462865823 521955077 544465269 595113201 671085099 741735294 836424906 846945974 865357843 914231874 925731646 975829057 1043910154 1066603853 1088930538 1112602941 1190226402 1254637359 1270418961 1342170198 1371347811 1388597469 1565865231 1730715686 1951658114 2133207706 2225205882 2509274718 2540837922 2596073529 2742695622 2777194938 2843318627 2927487171 3131730462 3199811559 3206295473 3504555517 3811256883 4165792407 4697595693 5192147058 5686637254 5854974342 6399623118 6412590946 6551995097 7009111034 7622513766 7788220587 8331584814 8529955881 8782461513 9395191386 9599434677 9618886419 10513666551 13103990194 15576441174 17059911762 17564923026 19198869354 19237772838 19655985291 19903230389 21027333102 22444068311 24531888619 25589867643 28856659257 31540999653 39311970582 39806460778 44888136622 45863965679 49063777238 51179735286 57713318514 58967955873 59709691167 63081999306 67332204933 73595665857 91727931358 117935911746 119419382334 134664409866 137591897037 147191331714 150695887231 179129073501 201996614799 220786997571 275183794074 301391774462 358258147002 403993229598 412775691111 441573995142 452087661693 825551382222 904175323386 1054871210617 1356262985079 2109742421234 2712525970158 3164613631851 6329227263702 9493840895553 18987681791106
• Sum of all divisors σ(n): 52238655406080
• Sum of proper divisors (its aliquot sum) s(n): 33250973614974
• 18987681791106 is an abundant number, because the sum of its proper divisors (33250973614974) is greater than itself. Its abundance is 14263291823868

Bases of 18987681791106

• Binary: 100010100010011101010000001110011110010000010₂
• Hexadecimal: 0x1144EA073C82
• Base-36: 6QATJHOCI

Squares and roots of 18987681791106

• 18987681791106 squared (18987681791106²) is 360532059800298356220703236
• 18987681791106 cubed (18987681791106³) is 6845668026980064593117910037171370219016
• The square root of 18987681791106 is 4357485.7189790077
• The cube root of 18987681791106 is 26678.2485863481

Scales and comparisons

• 18,987,681,791,106 seconds is equal to 603,749 years, 28 weeks, 3 days, 13 hours, 5 minutes, 6 seconds.
• To count from 1 to 18,987,681,791,106 would take you about one million, five hundred nine thousand, three hundred seventy-three 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 18987681791106 cubic inches would be around 2223.2 feet tall.

Recreational maths with 18987681791106

• 18987681791106 backwards is 60119718678981
• The number of decimal digits it has is: 14
• The sum of 18987681791106's digits is 72
• More coming soon!