491661497538694917

Names of 491661497538694917

• Cardinal: 491661497538694917 can be written as Four hundred ninety-one quadrillion, six hundred sixty-one trillion, four hundred ninety-seven billion, five hundred thirty-eight million, six hundred ninety-four thousand, nine hundred seventeen.

Scientific notation

• Scientific notation: 4.91661497538694917 × 10¹⁷

Factors of 491661497538694917

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 9767397690415

Divisors of 491661497538694917

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 17 21 47 51 63 119 141 153 329 357 423 799 987 1071 2397 2961 5593 7191 16779 50337 9767397690341 29302193071023 68371783832387 87906579213069 166045760735797 205115351497161 459067691446027 498137282207391 615346054491483 1162320325150579 1377203074338081 1494411846622173 3213473840122189 3486960975451737 4131609223014243 7804150754582459 9640421520366567 10460882926355211 23412452263747377 28921264561099701 54629055282077213 70237356791242131 163887165846231639 491661497538694917
• Sum of all divisors σ(n): 877659286863370752
• Sum of proper divisors (its aliquot sum) s(n): 385997789324675835
• 491661497538694917 is a deficient number, because the sum of its proper divisors (385997789324675835) is less than itself. Its deficiency is 105663708214019082

Bases of 491661497538694917

• Binary: 11011010010101110111000011011101110100001111100111100000101₂
• Hexadecimal: 0x6D2BB86EE87CF05
• Base-36: 3QH3GDUMUTJ9

Squares and roots of 491661497538694917

• 491661497538694917 squared (491661497538694917²) is 241731028161992107927213711601636889
• 491661497538694917 cubed (491661497538694917³) is 118849839307693474437728461619492492908668553983993213
• The square root of 491661497538694917 is 701185779.6181372337
• The cube root of 491661497538694917 is 789263.5863242881

Scales and comparisons

• 491,661,497,538,694,917 seconds is equal to 15,633,314,812 years, 45 weeks, 1 hour, 1 minute, 57 seconds.
• To count from 1 to 491,661,497,538,694,917 would take you about forty-six billion, eight hundred ninety-nine million, nine hundred forty-four thousand, four hundred thirty-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 491661497538694917 cubic inches would be around 65772 feet tall.

Recreational maths with 491661497538694917

• 491661497538694917 backwards is 719496835794166194
• The number of decimal digits it has is: 18
• The sum of 491661497538694917's digits is 99
• More coming soon!