18055731915

Names of 18055731915

• Cardinal: 18055731915 can be written as Eighteen billion, fifty-five million, seven hundred thirty-one thousand, nine hundred fifteen.

Scientific notation

• Scientific notation: 1.8055731915 × 10¹⁰

Factors of 18055731915

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2082

Divisors of 18055731915

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 9 13 15 31 39 45 65 93 117 155 195 279 403 465 585 829 1201 1209 1395 2015 2487 3603 3627 4145 6005 6045 7461 10777 10809 12435 15613 18015 18135 25699 32331 37231 37305 46839 53885 54045 77097 78065 96993 111693 128495 140517 161655 186155 231291 234195 334087 335079 385485 484003 484965 558465 702585 995629 1002261 1156455 1452009 1670435 1675395 2420015 2986887 3006783 4356027 4978145 5011305 7260045 8960661 12943177 14934435 15033915 21780135 30864499 38829531 44803305 64715885 92593497 116488593 154322495 194147655 277780491 401238487 462967485 582442965 1203715461 1388902455 2006192435 3611146383 6018577305 18055731915
• Sum of all divisors σ(n): 34862231040
• Sum of proper divisors (its aliquot sum) s(n): 16806499125
• 18055731915 is a deficient number, because the sum of its proper divisors (16806499125) is less than itself. Its deficiency is 1249232790

Bases of 18055731915

• Binary: 10000110100001101001001101011001011₂
• Hexadecimal: 0x434349ACB
• Base-36: 8ALWZWR

Squares and roots of 18055731915

• 18055731915 squared (18055731915²) is 326009454986349567225
• 18055731915 cubed (18055731915³) is 5886339320988787770290870485875
• The square root of 18055731915 is 134371.6187109465
• The cube root of 18055731915 is 2623.4434025787

Scales and comparisons

• 18,055,731,915 seconds is equal to 574 years, 6 weeks, 9 hours, 5 minutes, 15 seconds.
• To count from 1 to 18,055,731,915 would take you about one thousand, one hundred forty-eight 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 18055731915 cubic inches would be around 218.6 feet tall.

Recreational maths with 18055731915

• 18055731915 backwards is 51913755081
• 18055731915 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18055731915's digits is 45
• More coming soon!