121720550164863586768

Names of 121720550164863586768

• Cardinal: 121720550164863586768 can be written as One hundred twenty-one quintillion, seven hundred twenty quadrillion, five hundred fifty trillion, one hundred sixty-four billion, eight hundred sixty-three million, five hundred eighty-six thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.21720550164863586768 × 10²⁰

Factors of 121720550164863586768

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 764980376

Divisors of 121720550164863586768

• Number of divisors d(n): 30
• Complete list of divisors:
  1 2 4 8 13 16 26 52 104 208 764980361 1529960722 3059921444 6119842888 9944744693 12239685776 19889489386 39778978772 79557957544 159115915088 585194952715690321 1170389905431380642 2340779810862761284 4681559621725522568 7607534385303974173 9363119243451045136 15215068770607948346 30430137541215896692 60860275082431793384 121720550164863586768
• Sum of all divisors σ(n): 253974609810611076422
• Sum of proper divisors (its aliquot sum) s(n): 132254059645747489654
• 121720550164863586768 is an abundant number, because the sum of its proper divisors (132254059645747489654) is greater than itself. Its abundance is 10533509480883902886

Bases of 121720550164863586768

• Binary: 1101001100100110110010000110111100011001001110011110001000111010000₂
• Hexadecimal: 0x699364378C9CF11D0
• Base-36: PORX9Y1QM8G5S

Squares and roots of 121720550164863586768

• 121720550164863586768 squared (121720550164863586768²) is 14815892332437072939927367042009864685824
• 121720550164863586768 cubed (121720550164863586768³) is 1803398565887624509732161351936974162932251310943284083576832
• The square root of 121720550164863586768 is 11032703665.2338118879
• The cube root of 121720550164863586768 is 4955885.9367251017

Scales and comparisons

• 121,720,550,164,863,586,768 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 121,720,550,164,863,586,768 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 121720550164863586768 cubic inches would be around 412990.5 feet tall.

Recreational maths with 121720550164863586768

• 121720550164863586768 backwards is 867685368461055027121
• The number of decimal digits it has is: 21
• The sum of 121720550164863586768's digits is 91
• More coming soon!