18089107491

Names of 18089107491

• Cardinal: 18089107491 can be written as Eighteen billion, eighty-nine million, one hundred seven thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 1.8089107491 × 10¹⁰

Factors of 18089107491

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2059

Divisors of 18089107491

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 7 13 19 21 39 49 57 91 133 147 169 247 273 361 399 507 637 741 931 1083 1183 1729 1911 2017 2527 2793 3211 3549 4693 5187 6051 7581 8281 9633 12103 14079 14119 17689 22477 24843 26221 32851 36309 38323 42357 53067 61009 67431 78663 98553 98833 114969 157339 183027 183547 229957 268261 296499 340873 427063 472017 498199 550641 689871 728137 804783 1022619 1281189 1284829 1494597 1877827 2184411 2386111 2989441 3487393 3854487 5096959 5633481 6476587 7158333 8968323 9465781 10462179 15290877 16702777 19429761 24411751 28397343 35678713 45336109 50108331 66260467 73235253 107036139 123055153 136008327 198781401 317352763 369165459 463823269 861386071 952058289 1391469807 2584158213 6029702497 18089107491
• Sum of all divisors σ(n): 32079831192
• Sum of proper divisors (its aliquot sum) s(n): 13990723701
• 18089107491 is a deficient number, because the sum of its proper divisors (13990723701) is less than itself. Its deficiency is 4098383790

Bases of 18089107491

• Binary: 10000110110001100011110000000100011₂
• Hexadecimal: 0x43631E023
• Base-36: 8B5SCO3

Squares and roots of 18089107491

• 18089107491 squared (18089107491²) is 327215809820952315081
• 18089107491 cubed (18089107491³) is 5919041956605819891485509371771
• The square root of 18089107491 is 134495.7526875849
• The cube root of 18089107491 is 2625.0588644577

Scales and comparisons

• 18,089,107,491 seconds is equal to 575 years, 9 weeks, 1 day, 16 hours, 4 minutes, 51 seconds.
• To count from 1 to 18,089,107,491 would take you about one thousand, one hundred fifty 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 18089107491 cubic inches would be around 218.8 feet tall.

Recreational maths with 18089107491

• 18089107491 backwards is 19470198081
• The number of decimal digits it has is: 11
• The sum of 18089107491's digits is 48
• More coming soon!