18126620438999712994

Names of 18126620438999712994

• Cardinal: 18126620438999712994 can be written as Eighteen quintillion, one hundred twenty-six quadrillion, six hundred twenty trillion, four hundred thirty-eight billion, nine hundred ninety-nine million, seven hundred twelve thousand, nine hundred ninety-four.

Scientific notation

• Scientific notation: 1.8126620438999712994 × 10¹⁹

Factors of 18126620438999712994

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 104927355892661

Divisors of 18126620438999712994

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 17 34 5081 10162 86377 172754 104927355887561 209854711775122 1783765050088537 3567530100177074 533135895264697441 1066271790529394882 9063310219499856497 18126620438999712994
• Sum of all divisors σ(n): 28795004421511864536
• Sum of proper divisors (its aliquot sum) s(n): 10668383982512151542
• 18126620438999712994 is a deficient number, because the sum of its proper divisors (10668383982512151542) is less than itself. Its deficiency is 7458236456487561452

Bases of 18126620438999712994

• Binary: 1111101110001110101100010100000000010100111010011100010011100010₂
• Hexadecimal: 0xFB8EB14014E9C4E2
• Base-36: 3TPTYO6LXV5YA

Squares and roots of 18126620438999712994

• 18126620438999712994 squared (18126620438999712994²) is 328574368539562147823348568814372444036
• 18126620438999712994 cubed (18126620438999712994³) is 5955942864500651506030232463318203353042000114026327003784
• The square root of 18126620438999712994 is 4257536898.1371979407
• The cube root of 18126620438999712994 is 2626872.2154647371

Scales and comparisons

• 18,126,620,438,999,712,994 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,126,620,438,999,712,994 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18126620438999712994 cubic inches would be around 218906 feet tall.

Recreational maths with 18126620438999712994

• 18126620438999712994 backwards is 49921799983402662181
• The number of decimal digits it has is: 20
• The sum of 18126620438999712994's digits is 100
• More coming soon!