18315493143991857

Names of 18315493143991857

• Cardinal: 18315493143991857 can be written as Eighteen quadrillion, three hundred fifteen trillion, four hundred ninety-three billion, one hundred forty-three million, nine hundred ninety-one thousand, eight hundred fifty-seven.

Scientific notation

• Scientific notation: 1.8315493143991857 × 10¹⁶

Factors of 18315493143991857

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 914503957

Divisors of 18315493143991857

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 11 33 53 99 121 159 347 363 477 583 1041 1089 1749 3123 3817 5247 6413 11451 18391 19239 34353 41987 55173 57717 125961 165519 202301 377883 606903 1820709 2225311 6675933 20027799 914503543 2743510629 8230531887 10059538973 30178616919 48468687779 90535850757 110654928703 145406063337 317332729421 331964786109 436218190011 533155565569 951998188263 995894358327 1599466696707 2855994564789 3490660023631 4798400090121 5864711221259 10471980070893 16818634659313 17594133663777 31415940212679 38397260259941 50455903977939 52782400991331 115191780779823 151367711933817 185004981252443 345575342339469 555014943757329 1665044831271987 2035054793776873 6105164381330619 18315493143991857
• Sum of all divisors σ(n): 29713471185408192
• Sum of proper divisors (its aliquot sum) s(n): 11397978041416335
• 18315493143991857 is a deficient number, because the sum of its proper divisors (11397978041416335) is less than itself. Its deficiency is 6917515102575522

Bases of 18315493143991857

• Binary: 1000001000100011101100000001110101110111101011000110001₂
• Hexadecimal: 0x4111D80EBBD631
• Base-36: 50CATE5WVU9

Squares and roots of 18315493143991857

• 18315493143991857 squared (18315493143991857²) is 335457289107612718614656882308449
• 18315493143991857 cubed (18315493143991857³) is 6144065678752574997288746015465133401781018299793
• The square root of 18315493143991857 is 135334744.7775029315
• The cube root of 18315493143991857 is 263596.4389318379

Scales and comparisons

• 18,315,493,143,991,857 seconds is equal to 582,376,028 years, 22 weeks, 5 days, 18 hours, 10 minutes, 57 seconds.
• To count from 1 to 18,315,493,143,991,857 would take you about one billion, seven hundred forty-seven million, one hundred twenty-eight thousand and eighty-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 18315493143991857 cubic inches would be around 21966.4 feet tall.

Recreational maths with 18315493143991857

• 18315493143991857 backwards is 75819934139451381
• The number of decimal digits it has is: 17
• The sum of 18315493143991857's digits is 81
• More coming soon!