18518143289985378

Names of 18518143289985378

• Cardinal: 18518143289985378 can be written as Eighteen quadrillion, five hundred eighteen trillion, one hundred forty-three billion, two hundred eighty-nine million, nine hundred eighty-five thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 1.8518143289985378 × 10¹⁶

Factors of 18518143289985378

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6269

Divisors of 18518143289985378

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 13 18 26 37 39 41 74 78 82 111 117 123 222 234 246 333 369 481 533 666 738 962 1066 1369 1443 1517 1599 2738 2886 3034 3198 4107 4329 4551 4797 6173 8214 8658 9102 9594 12321 12346 13653 17797 18519 19721 24642 27306 35594 37038 39442 50653 53391 55557 56129 59163 80249 101306 106782 111114 112258 118326 151959 160173 160498 168387 177489 228401 240747 253093 303918 320346 336774 354978 455877 456802 481494 505161 506186 658489 685203 722241 729677 759279 911754 1010322 1316978 1370406 1444482 1459354 1518558 1975467 2055609 2076773 2189031 2277837 2969213 3290209 3950934 4111218 4153546 4378062 4555674 5926401 5938426 6230319 6567093 6580418 8450837 8907639 9364441 9870627 11852802 12460638 13134186 16901674 17815278 18690957 18728882 19741254 25352511 26722917 26998049 28093323 29611881 37381914 38105929 50705022 53445834 53996098 56186646 59223762 76057533 76211858 80994147 84279969 109860881 114317787 121737733 152115066 161988294 168559938 219721762 228635574 242982441 243475466 312680969 329582643 342953361 346484317 365213199 485964882 495377077 625361938 659165286 685906722 692968634 730426398 938042907 988747929 990754154 1039452951 1095639597 1409919373 1486131231 1562343089 1876085814 1977495858 2078905902 2191279194 2814128721 2819838746 2972262462 3118358853 3124686178 4064852597 4229758119 4458393693 4504296121 4687029267 5628257442 6236717706 8129705194 8459516238 8916787386 9008592242 9374058534 12194557791 12689274357 12819919729 13512888363 14061087801 18328951849 20310460157 24389115582 25378548714 25639839458 27025776726 28122175602 36583673373 36657903698 38459759187 40538665089 40620920314 52167016801 54986855547 57806694293 60931380471 73167346746 76919518374 81077330178 104334033602 109973711094 115379277561 115613388586 121862760942 156501050403 164960566641 166658956477 173420082879 182794141413 230758555122 313002100806 329921133282 333317912954 346840165758 365588282826 469503151209 499976869431 520260248637 678171218413 751487025809 939006302418 999953738862 1040520497274 1356342436826 1499930608293 1502974051618 1930179621637 2034513655239 2138847688841 2254461077427 2999861216586 3860359243274 4069027310478 4277695377682 4508922154854 5790538864911 6103540965717 6416543066523 6763383232281 11581077729822 12207081931434 12833086133046 13526766464562 17371616594733 19249629199569 25092335081281 27805019954933 34743233189466 38499258399138 50184670162562 55610039909866 75277005243843 79137364487117 83415059864799 150554010487686 158274728974234 166830119729598 225831015731529 237412093461351 250245179594397 451662031463058 474824186922702 500490359188794 712236280384053 1028785738332521 1424472560768106 2057571476665042 3086357214997563 6172714429995126 9259071644992689 18518143289985378
• Sum of all divisors σ(n): 45499749996551760
• Sum of proper divisors (its aliquot sum) s(n): 26981606706566382
• 18518143289985378 is an abundant number, because the sum of its proper divisors (26981606706566382) is greater than itself. Its abundance is 8463463416581004

Bases of 18518143289985378

• Binary: 1000001110010100010011100111000101100110000100101100010₂
• Hexadecimal: 0x41CA2738B30962
• Base-36: 52C4TL2KDWI

Squares and roots of 18518143289985378

• 18518143289985378 squared (18518143289985378²) is 342921630908430479517627453802884
• 18518143289985378 cubed (18518143289985378³) is 6350271898397794288623692199888154578618854230152
• The square root of 18518143289985378 is 136081384.8033057679
• The cube root of 18518143289985378 is 264565.0550681261

Scales and comparisons

• 18,518,143,289,985,378 seconds is equal to 588,819,676 years, 12 weeks, 4 days, 14 hours, 36 minutes, 18 seconds.
• To count from 1 to 18,518,143,289,985,378 would take you about one billion, seven hundred sixty-six million, four hundred fifty-nine thousand and twenty-eight 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 18518143289985378 cubic inches would be around 22047.1 feet tall.

Recreational maths with 18518143289985378

• 18518143289985378 backwards is 87358998234181581
• The number of decimal digits it has is: 17
• The sum of 18518143289985378's digits is 90
• More coming soon!