18115837137215999

Names of 18115837137215999

• Cardinal: 18115837137215999 can be written as Eighteen quadrillion, one hundred fifteen trillion, eight hundred thirty-seven billion, one hundred thirty-seven million, two hundred fifteen thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 1.8115837137215999 × 10¹⁶

Factors of 18115837137215999

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 12685609

Divisors of 18115837137215999

• Number of divisors d(n): 8
• Complete list of divisors:
  1 827 2062153 10622629 1705400531 8784914183 21905486260237 18115837137215999
• Sum of all divisors σ(n): 18137753126476560
• Sum of proper divisors (its aliquot sum) s(n): 21915989260561
• 18115837137215999 is a deficient number, because the sum of its proper divisors (21915989260561) is less than itself. Its deficiency is 18093921147955438

Bases of 18115837137215999

• Binary: 1000000010111000100001000000101010111110110000111111111₂
• Hexadecimal: 0x405C42055F61FF
• Base-36: 4YDJ0OUFZZZ

Squares and roots of 18115837137215999

• 18115837137215999 squared (18115837137215999²) is 328183555182134362180556381568001
• 18115837137215999 cubed (18115837137215999³) is 5945319836792085797050117436628572804515443647999
• The square root of 18115837137215999 is 134595085.8583477371
• The cube root of 18115837137215999 is 262635.1214233457

Scales and comparisons

• 18,115,837,137,215,999 seconds is equal to 576,027,584 years, 51 weeks, 6 days, 23 hours, 59 minutes, 59 seconds.
• To count from 1 to 18,115,837,137,215,999 would take you about one billion, seven hundred twenty-eight million, eighty-two thousand, seven hundred fifty-four 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 18115837137215999 cubic inches would be around 21886.3 feet tall.

Recreational maths with 18115837137215999

• 18115837137215999 backwards is 99951273173851181
• The number of decimal digits it has is: 17
• The sum of 18115837137215999's digits is 80
• More coming soon!