18378202021218

Names of 18378202021218

• Cardinal: 18378202021218 can be written as Eighteen trillion, three hundred seventy-eight billion, two hundred two million, twenty-one thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 1.8378202021218 × 10¹³

Factors of 18378202021218

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2011

Divisors of 18378202021218

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 169 234 338 351 507 702 1014 1053 1521 1993 2106 2197 3042 3986 4394 4563 5979 6591 9126 11958 13182 13689 17937 19773 25909 27378 28561 35874 39546 51818 53811 57122 59319 77727 85683 107622 118638 155454 161433 171366 177957 233181 257049 322866 336817 355914 466362 514098 673634 699543 771147 1010451 1399086 1542294 2020902 2098629 2313441 3031353 3972049 4197258 4378621 4626882 6062706 7944098 8757242 9094059 11916147 13135863 18188118 23832294 26271726 27282177 35748441 39407589 51636637 54564354 56922073 71496882 78815178 103273274 107245323 113844146 118222767 154909911 170766219 214490646 236445534 309819822 321735969 341532438 354668301 464729733 512298657 643471938 671276281 709336602 929459466 1024597314 1342552562 1394189199 1536895971 2013828843 2788378398 3073791942 4027657686 4182567597 4610687913 6041486529 8365135194 8726591653 9221375826 12082973058 17453183306 18124459587 26179774959 36248919174 52359549918 54373378761 78539324877 108746757522 113445691489 157078649754 226891382978 235617974631 340337074467 471235949262 680674148934 706853923893 1021011223401 1413707847786 2042022446802 3063033670203 6126067340406 9189101010609 18378202021218
• Sum of all divisors σ(n): 44634793800069
• Sum of proper divisors (its aliquot sum) s(n): 26256591778851
• 18378202021218 is an abundant number, because the sum of its proper divisors (26256591778851) is greater than itself. Its abundance is 7878389757633

Bases of 18378202021218

• Binary: 100001011011100000010001100111111110101100010₂
• Hexadecimal: 0x10B70233FD62
• Base-36: 6IITUZ04I

Squares and roots of 18378202021218

• 18378202021218 squared (18378202021218²) is 337758309532701380522203524
• 18378202021218 cubed (18378202021218³) is 6207390446937067388580779741103962372232
• The square root of 18378202021218 is 4286980.5249403687
• The cube root of 18378202021218 is 26389.6931477663

Scales and comparisons

• 18,378,202,021,218 seconds is equal to 584,369 years, 50 weeks, 5 days, 13 hours, 18 seconds.
• To count from 1 to 18,378,202,021,218 would take you about one million, four hundred sixty thousand, nine hundred twenty-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 18378202021218 cubic inches would be around 2199.1 feet tall.

Recreational maths with 18378202021218

• 18378202021218 backwards is 81212020287381
• The number of decimal digits it has is: 14
• The sum of 18378202021218's digits is 45
• More coming soon!