18004990011993875263

Names of 18004990011993875263

• Cardinal: 18004990011993875263 can be written as Eighteen quintillion, four quadrillion, nine hundred ninety trillion, eleven billion, nine hundred ninety-three million, eight hundred seventy-five thousand, two hundred sixty-three.

Scientific notation

• Scientific notation: 1.8004990011993875263 × 10¹⁹

Factors of 18004990011993875263

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 129053

Divisors of 18004990011993875263

• Number of divisors d(n): 36
• Complete list of divisors:
  1 23 127 529 2921 16129 67183 128903 370967 2048383 2964769 8532241 16370681 47112809 68189687 376525663 1083594607 2079076487 8660090249 16615983409 47818759201 264042713849 382167618407 1099831461623 2110229892943 6072982418527 8789855223361 48535287537689 139678595626121 267999196403761 1116311613366847 6163981517286503 34035897943277647 141771574897589569 782825652695385881 18004990011993875263
• Sum of all divisors σ(n): 18971378439629512960
• Sum of proper divisors (its aliquot sum) s(n): 966388427635637697
• 18004990011993875263 is a deficient number, because the sum of its proper divisors (966388427635637697) is less than itself. Its deficiency is 17038601584358237566

Bases of 18004990011993875263

• Binary: 1111100111011110100100110000010101111001010110011110001100111111₂
• Hexadecimal: 0xF9DE93057959E33F
• Base-36: 3SSKCA7TN5HKV

Squares and roots of 18004990011993875263

• 18004990011993875263 squared (18004990011993875263²) is 324179665331999208486977783824403319169
• 18004990011993875263 cubed (18004990011993875263³) is 5836851636394162897609034116988086016646725815516162816447
• The square root of 18004990011993875263 is 4243228724.9209033491
• The cube root of 18004990011993875263 is 2620983.5483332001

Scales and comparisons

• 18,004,990,011,993,875,263 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,004,990,011,993,875,263 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18004990011993875263 cubic inches would be around 218415.3 feet tall.

Recreational maths with 18004990011993875263

• 18004990011993875263 backwards is 36257839911009940081
• The number of decimal digits it has is: 20
• The sum of 18004990011993875263's digits is 85
• More coming soon!