13218775781643

Names of 13218775781643

• Cardinal: 13218775781643 can be written as Thirteen trillion, two hundred eighteen billion, seven hundred seventy-five million, seven hundred eighty-one thousand, six hundred forty-three.

Scientific notation

• Scientific notation: 1.3218775781643 × 10¹³

Factors of 13218775781643

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 620

Divisors of 13218775781643

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 9 17 27 51 79 153 237 289 459 521 711 867 1343 1563 2133 2601 4029 4689 6241 7803 8857 12087 14067 18723 22831 26571 36261 41159 56169 68493 79713 106097 123477 150569 168507 205479 239139 271441 318291 370431 451707 616437 699703 814323 954873 1111293 1355121 1803649 2099109 2442969 2864619 3251561 4065363 4614497 5410947 6297327 7328907 9754683 11894951 13843491 16232841 18891981 21443839 29264049 35684853 41530473 48698523 55276537 64331517 78446449 87792147 107054559 124591419 165829611 192994551 235339347 321163677 364545263 497488833 578983653 706018041 939701129 1093635789 1492466499 1694063281 2118054123 2819103387 3280907367 5082189843 6197269471 8457310161 9842722101 15246569529 18591808413 25371930483 28799075777 45739708587 55775425239 86397227331 167326275717 259191681993 489584288209 777575045979 1468752864627 4406258593881 13218775781643
• Sum of all divisors σ(n): 21110279350440
• Sum of proper divisors (its aliquot sum) s(n): 7891503568797
• 13218775781643 is a deficient number, because the sum of its proper divisors (7891503568797) is less than itself. Its deficiency is 5327272212846

Bases of 13218775781643

• Binary: 11000000010110111100011011110101000100001011₂
• Hexadecimal: 0xC05BC6F510B
• Base-36: 4OOMDSV0R

Squares and roots of 13218775781643

• 13218775781643 squared (13218775781643²) is 174736033165351505615779449
• 13218775781643 cubed (13218775781643³) is 2309796443386516520111071889989670854707
• The square root of 13218775781643 is 3635763.4386250985
• The cube root of 13218775781643 is 23644.5151037443

Scales and comparisons

• 13,218,775,781,643 seconds is equal to 420,316 years, 9 weeks, 3 days, 1 hour, 34 minutes, 3 seconds.
• To count from 1 to 13,218,775,781,643 would take you about one million, fifty thousand, seven hundred ninety 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 13218775781643 cubic inches would be around 1970.4 feet tall.

Recreational maths with 13218775781643

• 13218775781643 backwards is 34618757781231
• The number of decimal digits it has is: 14
• The sum of 13218775781643's digits is 63
• More coming soon!