18646891004

Names of 18646891004

• Cardinal: 18646891004 can be written as Eighteen billion, six hundred forty-six million, eight hundred ninety-one thousand and four.

Scientific notation

• Scientific notation: 1.8646891004 × 10¹⁰

Factors of 18646891004

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 116518

Divisors of 18646891004

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 14 19 28 38 43 49 76 86 98 133 172 196 266 301 532 602 817 931 1204 1634 1862 2107 3268 3724 4214 5719 8428 11438 22876 40033 80066 116447 160132 232894 465788 815129 1630258 2212493 3260516 4424986 5007221 5705903 8849972 10014442 11411806 15487451 20028884 22823612 30974902 35050547 61949804 70101094 95137199 108412157 140202188 190274398 216824314 245353829 380548796 433648628 490707658 665960393 981415316 1331920786 2663841572 4661722751 9323445502 18646891004
• Sum of all divisors σ(n): 40887221760
• Sum of proper divisors (its aliquot sum) s(n): 22240330756
• 18646891004 is an abundant number, because the sum of its proper divisors (22240330756) is greater than itself. Its abundance is 3593439752

Bases of 18646891004

• Binary: 10001010111011100001111100111111100₂
• Hexadecimal: 0x45770F9FC
• Base-36: 8KDVL6K

Squares and roots of 18646891004

• 18646891004 squared (18646891004²) is 347706544115056128016
• 18646891004 cubed (18646891004³) is 6483646029490969254456622768064
• The square root of 18646891004 is 136553.6195199527
• The cube root of 18646891004 is 2651.7677064875

Scales and comparisons

• 18,646,891,004 seconds is equal to 592 years, 47 weeks, 3 days, 11 hours, 56 minutes, 44 seconds.
• To count from 1 to 18,646,891,004 would take you about one thousand, one hundred 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 18646891004 cubic inches would be around 221 feet tall.

Recreational maths with 18646891004

• 18646891004 backwards is 40019864681
• The number of decimal digits it has is: 11
• The sum of 18646891004's digits is 47
• More coming soon!