121643665217638201

Names of 121643665217638201

• Cardinal: 121643665217638201 can be written as One hundred twenty-one quadrillion, six hundred forty-three trillion, six hundred sixty-five billion, two hundred seventeen million, six hundred thirty-eight thousand, two hundred one.

Scientific notation

• Scientific notation: 1.21643665217638201 × 10¹⁷

Factors of 121643665217638201

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 36746455765

Divisors of 121643665217638201

• Number of divisors d(n): 32
• Complete list of divisors:
  1 11 19 47 209 337 517 893 3707 6403 9823 15839 70433 174229 300941 3310351 36746455351 404211008861 698182651669 1727083401497 7680009168359 12383555453287 18997917416467 32814584628443 136219109986157 235287553612453 360960430912873 582027106304489 2588163089736983 6402298169349379 11058515019785291 121643665217638201
• Sum of all divisors σ(n): 143081877991403520
• Sum of proper divisors (its aliquot sum) s(n): 21438212773765319
• 121643665217638201 is a deficient number, because the sum of its proper divisors (21438212773765319) is less than itself. Its deficiency is 100205452443872882

Bases of 121643665217638201

• Binary: 110110000001010100100010011011110011110010100111100111001₂
• Hexadecimal: 0x1B02A44DE794F39
• Base-36: X9R2WC47VI1

Squares and roots of 121643665217638201

• 121643665217638201 squared (121643665217638201²) is 14797181287580841874659716534516401
• 121643665217638201 cubed (121643665217638201³) is 1799983366711184504719036614786082213991768918634601
• The square root of 121643665217638201 is 348774519.1633674965
• The cube root of 121643665217638201 is 495484.2252967451

Scales and comparisons

• 121,643,665,217,638,201 seconds is equal to 3,867,892,285 years, 18 weeks, 4 days, 19 hours, 30 minutes, 1 second.
• To count from 1 to 121,643,665,217,638,201 would take you about eleven billion, six hundred three million, six hundred seventy-six thousand, eight hundred fifty-six 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 121643665217638201 cubic inches would be around 41290.4 feet tall.

Recreational maths with 121643665217638201

• 121643665217638201 backwards is 102836712566346121
• The number of decimal digits it has is: 18
• The sum of 121643665217638201's digits is 64
• More coming soon!