18112938864

Names of 18112938864

• Cardinal: 18112938864 can be written as Eighteen billion, one hundred twelve million, nine hundred thirty-eight thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8112938864 × 10¹⁰

Factors of 18112938864

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 363972

Divisors of 18112938864

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 34 48 51 61 68 102 122 136 183 204 244 272 366 408 488 732 816 976 1037 1464 2074 2928 3111 4148 6222 8296 12444 16592 24888 49776 363889 727778 1091667 1455556 2183334 2911112 4366668 5822224 6186113 8733336 12372226 17466672 18558339 22197229 24744452 37116678 44394458 49488904 66591687 74233356 88788916 98977808 133183374 148466712 177577832 266366748 296933424 355155664 377352893 532733496 754705786 1065466992 1132058679 1509411572 2264117358 3018823144 4528234716 6037646288 9056469432 18112938864
• Sum of all divisors σ(n): 50356553760
• Sum of proper divisors (its aliquot sum) s(n): 32243614896
• 18112938864 is an abundant number, because the sum of its proper divisors (32243614896) is greater than itself. Its abundance is 14130676032

Bases of 18112938864

• Binary: 10000110111100111011000001101110000₂
• Hexadecimal: 0x4379D8370
• Base-36: 8BJZ52O

Squares and roots of 18112938864

• 18112938864 squared (18112938864²) is 328078554291001610496
• 18112938864 cubed (18112938864³) is 5942466796462417036239588716544
• The square root of 18112938864 is 134584.3187893745
• The cube root of 18112938864 is 2626.2111472985

Scales and comparisons

• 18,112,938,864 seconds is equal to 575 years, 48 weeks, 4 days, 11 hours, 54 minutes, 24 seconds.
• To count from 1 to 18,112,938,864 would take you about one thousand, one hundred fifty-one 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 18112938864 cubic inches would be around 218.9 feet tall.

Recreational maths with 18112938864

• 18112938864 backwards is 46883921181
• 18112938864 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18112938864's digits is 51
• More coming soon!