18729428382538146

Names of 18729428382538146

• Cardinal: 18729428382538146 can be written as Eighteen quadrillion, seven hundred twenty-nine trillion, four hundred twenty-eight billion, three hundred eighty-two million, five hundred thirty-eight thousand, one hundred forty-six.

Scientific notation

• Scientific notation: 1.8729428382538146 × 10¹⁶

Factors of 18729428382538146

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6263136

Divisors of 18729428382538146

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 91 117 126 131 182 189 234 262 273 351 378 393 546 702 786 819 917 1179 1638 1703 1834 2358 2457 2751 3406 3537 4649 4914 5109 5502 7074 8253 9298 10218 11921 13947 15327 16506 23842 24759 27894 30654 32543 35763 41841 45981 49518 60437 65086 71526 83682 91962 97629 107289 120874 125523 181311 195258 214578 251046 292887 321867 362622 423059 543933 585774 609019 643734 846118 878661 1087866 1218038 1269177 1631799 1757322 1827057 2538354 3263598 3654114 3807531 4263133 5481171 6258331 7615062 7917247 8526266 10962342 11422593 12516662 12789399 15834494 16443513 18774993 22845186 23751741 25578798 32887026 37549986 38368197 43808317 47503482 55420729 56324979 71255223 76736394 81358303 87616634 110841458 112649958 115104591 131424951 142510446 162716606 166262187 168974937 213765669 230209182 244074909 262849902 332524374 337949874 394274853 427531338 488149818 498786561 569508121 732224727 788549706 819841361 997573122 1139016242 1182824559 1464449454 1496359683 1639682722 1708524363 2196674181 2365649118 2459524083 2992719366 3417048726 4393348362 4919048166 5125573089 5738889527 7378572249 10251146178 10657937693 11477779054 14757144498 15376719267 17216668581 21315875386 22135716747 29094980819 30753438534 31973813079 34433337162 44271433494 51650005743 58189961638 63947626158 74605563851 87284942457 95921439237 103300011486 149211127702 154950017229 174569884914 191842878474 203664865733 223816691553 261854827371 287764317711 309900034458 378234750647 407329731466 447633383106 523709654742 575528635422 610994597199 671450074659 756469501294 785564482113 1134704251941 1221989194398 1342900149318 1571128964226 1832983791597 2014350223977 2269408503882 2647643254529 3404112755823 3665967583194 3811442487289 4028700447954 5295286509058 5498951374791 6808225511646 7622884974578 7942929763587 10212338267469 10997902749582 11434327461867 15885859527174 20424676534938 22868654923734 23828789290761 26680097411023 34302982385601 47657578581522 49548752334757 53360194822046 68605964771202 71486367872283 80040292233069 99097504669514 102908947156803 142972735744566 148646257004271 160080584466138 205817894313606 240120876699207 297292514008542 346841266343299 445938771012813 480241753398414 693682532686598 720362630097621 891877542025626 1040523799029897 1337816313038439 1440725260195242 2081047598059794 2675632626076878 3121571397089691 6243142794179382 9364714191269073 18729428382538146
• Sum of all divisors σ(n): 51627934600704000
• Sum of proper divisors (its aliquot sum) s(n): 32898506218165854
• 18729428382538146 is an abundant number, because the sum of its proper divisors (32898506218165854) is greater than itself. Its abundance is 14169077835627708

Bases of 18729428382538146

• Binary: 1000010100010100101000011011101100101100101100110100010₂
• Hexadecimal: 0x428A50DD9659A2
• Base-36: 54F10M7GASI

Squares and roots of 18729428382538146

• 18729428382538146 squared (18729428382538146²) is 350791487536625471856409145117316
• 18729428382538146 cubed (18729428382538146³) is 6570124043021249412943456522342254165871015136136
• The square root of 18729428382538146 is 136855501.8351039697
• The cube root of 18729428382538146 is 265567.4484944811

Scales and comparisons

• 18,729,428,382,538,146 seconds is equal to 595,537,888 years, 33 weeks, 1 day, 13 hours, 29 minutes, 6 seconds.
• To count from 1 to 18,729,428,382,538,146 would take you about one billion, seven hundred eighty-six million, six hundred thirteen thousand, six hundred sixty-five 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 18729428382538146 cubic inches would be around 22130.6 feet tall.

Recreational maths with 18729428382538146

• 18729428382538146 backwards is 64183528382492781
• The number of decimal digits it has is: 17
• The sum of 18729428382538146's digits is 81
• More coming soon!