121789832445304854901

Names of 121789832445304854901

• Cardinal: 121789832445304854901 can be written as One hundred twenty-one quintillion, seven hundred eighty-nine quadrillion, eight hundred thirty-two trillion, four hundred forty-five billion, three hundred four million, eight hundred fifty-four thousand, nine hundred one.

Scientific notation

• Scientific notation: 1.21789832445304854901 × 10²⁰

Factors of 121789832445304854901

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 600840815423688

Divisors of 121789832445304854901

• Number of divisors d(n): 16
• Complete list of divisors:
  1 7 23 161 1259 8813 28957 202699 600840815422399 4205885707956793 13819338754715177 96735371283006239 756458586616800341 5295210106317602387 17398547492186407843 121789832445304854901
• Sum of all divisors σ(n): 145355410066987008000
• Sum of proper divisors (its aliquot sum) s(n): 23565577621682153099
• 121789832445304854901 is a deficient number, because the sum of its proper divisors (23565577621682153099) is less than itself. Its deficiency is 98224254823622701802

Bases of 121789832445304854901

• Binary: 1101001101000101100011001110101011010111100101111010101100101110101₂
• Hexadecimal: 0x69A2C6756BCBD5975
• Base-36: PPAVGGPZHHSVP

Squares and roots of 121789832445304854901

• 121789832445304854901 squared (121789832445304854901²) is 14832763287055431132650747062400663719801
• 121789832445304854901 cubed (121789832445304854901³) is 1806479755431350235656202771473309355254638413904079225594701
• The square root of 121789832445304854901 is 11035843078.1388358277
• The cube root of 121789832445304854901 is 4956826.0407982435

Scales and comparisons

• 121,789,832,445,304,854,901 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 121,789,832,445,304,854,901 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 121789832445304854901 cubic inches would be around 413068.8 feet tall.

Recreational maths with 121789832445304854901

• 121789832445304854901 backwards is 109458403544238987121
• The number of decimal digits it has is: 21
• The sum of 121789832445304854901's digits is 88
• More coming soon!