18091112832388510209

Names of 18091112832388510209

• Cardinal: 18091112832388510209 can be written as Eighteen quintillion, ninety-one quadrillion, one hundred twelve trillion, eight hundred thirty-two billion, three hundred eighty-eight million, five hundred ten thousand, two hundred nine.

Scientific notation

• Scientific notation: 1.8091112832388510209 × 10¹⁹

Factors of 18091112832388510209

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 726945829352

Divisors of 18091112832388510209

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 9 27 41 123 369 1107 22481 67443 202329 606987 921721 2765163 8295489 24886467 726945806827 2180837420481 6542512261443 19627536784329 29804778079907 89414334239721 268243002719163 804729008157489 16342468683277787 49027406049833361 147082218149500083 441246654448500249 670041216014389267 2010123648043167801 6030370944129503403 18091112832388510209
• Sum of all divisors σ(n): 27456568656899921280
• Sum of proper divisors (its aliquot sum) s(n): 9365455824511411071
• 18091112832388510209 is a deficient number, because the sum of its proper divisors (9365455824511411071) is less than itself. Its deficiency is 8725657007877099138

Bases of 18091112832388510209

• Binary: 1111101100010000100010110100010100101110000001110011001000000001₂
• Hexadecimal: 0xFB108B452E073201
• Base-36: 3TG4C9XBKSGE9

Squares and roots of 18091112832388510209

• 18091112832388510209 squared (18091112832388510209²) is 327288363514212224278956743958497223681
• 18091112832388510209 cubed (18091112832388510209³) is 5921010713063400255536470863925479957668988618290225059329
• The square root of 18091112832388510209 is 4253364883.5232218069
• The cube root of 18091112832388510209 is 2625155.8647230091

Scales and comparisons

• 18,091,112,832,388,510,209 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,091,112,832,388,510,209 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 18091112832388510209 cubic inches would be around 218763 feet tall.

Recreational maths with 18091112832388510209

• 18091112832388510209 backwards is 90201588323821119081
• The number of decimal digits it has is: 20
• The sum of 18091112832388510209's digits is 72
• More coming soon!