18445312738818

Names of 18445312738818

• Cardinal: 18445312738818 can be written as Eighteen trillion, four hundred forty-five billion, three hundred twelve million, seven hundred thirty-eight thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.8445312738818 × 10¹³

Factors of 18445312738818

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 558

Divisors of 18445312738818

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 37 38 42 57 59 63 74 111 114 118 126 133 171 177 222 259 266 333 342 354 361 399 413 431 518 531 666 703 722 777 798 826 862 1062 1083 1121 1197 1239 1293 1406 1554 2109 2166 2183 2242 2331 2394 2478 2527 2586 3017 3249 3363 3717 3879 4218 4366 4662 4921 5054 6034 6327 6498 6549 6726 7434 7581 7758 7847 8189 9051 9842 10089 12654 13098 13357 14763 15162 15281 15694 15947 16378 18102 19647 20178 21299 22743 23541 24567 25429 26714 27153 29526 30562 31894 39294 40071 41477 42598 44289 45486 45843 47082 47841 49134 50858 54306 57323 63897 70623 73701 76287 80142 82954 88578 91686 93499 95682 111629 114646 120213 124431 127794 137529 141246 143523 147402 149093 152574 155591 171969 178003 185761 186998 191691 223258 228861 240426 248862 275058 280497 287046 290339 298186 302993 311182 334887 343938 356006 371522 373293 383382 447279 457722 466773 483151 515907 534009 557283 560994 580678 605986 669774 746586 788063 841491 871017 894558 908979 933546 940873 966302 1004661 1031814 1068018 1089137 1114566 1300327 1341837 1400319 1449453 1576126 1602027 1671849 1682982 1742034 1817958 1881746 2009322 2120951 2178274 2364189 2600654 2613051 2683674 2726937 2800638 2822619 2898906 3204054 3267411 3343698 3382057 3529459 3900981 4241902 4348359 4728378 5226102 5453874 5516441 5645238 5756867 6362853 6534822 6586111 6764114 6873157 7058918 7092567 7801962 8467857 8696718 9179869 9802233 10146171 10588377 10959899 11032882 11513734 11702943 12725706 13172222 13746314 14185134 16549323 16935714 17270601 17876587 18359738 19088559 19604466 19758333 20292342 20619471 21176754 21919798 23405886 24706213 27539607 30438513 31765131 32879697 33098646 34541202 35753174 38177118 39516666 40298069 41238942 48112099 49412426 49647969 51811803 53629761 55079214 59274999 60877026 61858413 63530262 64259083 65759394 67059721 74118639 76719293 80596138 82618821 96224198 98639091 99295938 103623606 107259522 118549998 120894207 123716826 125136109 128518166 130589983 134119442 144336297 148237278 153438586 160889283 165237642 192777249 197278182 201179163 208238081 222355917 230157879 241788414 250272218 261179966 288672594 321778566 339655153 362682621 375408327 385554498 391769949 402358326 405516263 416476162 433008891 444711834 460315758 469418047 578331747 603537489 624714243 679310306 690473637 725365242 750816654 783539898 811032526 866017782 914129881 938836094 1018965459 1126224981 1156663494 1175309847 1207074978 1216548789 1249428486 1380947274 1408254141 1457666567 1828259762 1874142729 2037930918 2252449962 2350619694 2377586071 2433097578 2481209677 2742389643 2816508282 2838613841 2915333134 3056896377 3649646367 3748285458 3956523539 4224762423 4372999701 4755172142 4962419354 5484779286 5677227682 6113792754 7132758213 7299292734 7443629031 7704808997 7913047078 8227168929 8449524846 8515841523 8745999402 11869570617 13118999103 14265516426 14887258062 15409617994 16454337858 17031683046 17368467739 21398274639 22330887093 23114426991 23739141234 25547524569 26237998206 27695664773 34736935478 35608711851 42796549278 44661774186 46228853982 51095049138 52105403217 53933662979 55391329546 69343280973 71217423702 83086994319 104210806434 107867325958 138686561946 146391370943 156316209651 161800988937 166173988638 249260982957 292782741886 312632419302 323601977874 439174112829 485402966811 498521965914 878348225658 970805933622 1024739596601 1317522338487 2049479193202 2635044676974 3074218789803 6148437579606 9222656369409 18445312738818
• Sum of all divisors σ(n): 50463546194880
• Sum of proper divisors (its aliquot sum) s(n): 32018233456062
• 18445312738818 is an abundant number, because the sum of its proper divisors (32018233456062) is greater than itself. Its abundance is 13572920717244

Bases of 18445312738818

• Binary: 100001100011010100010010100000100011000000010₂
• Hexadecimal: 0x10C6A2504602
• Base-36: 6JDNQYL8I

Squares and roots of 18445312738818

• 18445312738818 squared (18445312738818²) is 340229562032801588284037124
• 18445312738818 cubed (18445312738818³) is 6275640674686104091945013224598427879432
• The square root of 18445312738818 is 4294800.6634555229
• The cube root of 18445312738818 is 26421.7760809009

Scales and comparisons

• 18,445,312,738,818 seconds is equal to 586,503 years, 46 weeks, 1 day, 23 hours, 18 seconds.
• To count from 1 to 18,445,312,738,818 would take you about one million, four hundred sixty-six thousand, two hundred fifty-nine 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 18445312738818 cubic inches would be around 2201.8 feet tall.

Recreational maths with 18445312738818

• 18445312738818 backwards is 81883721354481
• 18445312738818 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18445312738818's digits is 63
• More coming soon!