420370154621845910172

Names of 420370154621845910172

• Cardinal: 420370154621845910172 can be written as Four hundred twenty quintillion, three hundred seventy quadrillion, one hundred fifty-four trillion, six hundred twenty-one billion, eight hundred forty-five million, nine hundred ten thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 4.20370154621845910172 × 10²⁰

Factors of 420370154621845910172

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 11676948739495719732

Divisors of 420370154621845910172

• Number of divisors d(n): 18
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 11676948739495719727 23353897478991439454 35030846218487159181 46707794957982878908 70061692436974318362 105092538655461477543 140123384873948636724 210185077310922955086 420370154621845910172
• Sum of all divisors σ(n): 1062602335294110495248
• Sum of proper divisors (its aliquot sum) s(n): 642232180672264585076
• 420370154621845910172 is an abundant number, because the sum of its proper divisors (642232180672264585076) is greater than itself. Its abundance is 221862026050418674904

Bases of 420370154621845910172

• Binary: 101101100100111001110110011000110100101111011001010000011001010011100₂
• Hexadecimal: 0x16C9CECC697B28329C
• Base-36: 2GPRWV7OTNDWV0

Squares and roots of 420370154621845910172

• 420370154621845910172 squared (420370154621845910172²) is 176711066896794638433239948973643093069584
• 420370154621845910172 cubed (420370154621845910172³) is 74284058514796918496457837594890237103083285244472767809408448
• The square root of 420370154621845910172 is 20502930391.0891213407
• The cube root of 420370154621845910172 is 7491071.7735462069

Scales and comparisons

• 420,370,154,621,845,910,172 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 420,370,154,621,845,910,172 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 420370154621845910172 cubic inches would be around 624256 feet tall.

Recreational maths with 420370154621845910172

• 420370154621845910172 backwards is 271019548126451073024
• The number of decimal digits it has is: 21
• The sum of 420370154621845910172's digits is 72
• More coming soon!