21555992384220

Names of 21555992384220

• Cardinal: 21555992384220 can be written as Twenty-one trillion, five hundred fifty-five billion, nine hundred ninety-two million, three hundred eighty-four thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.155599238422 × 10¹³

Factors of 21555992384220

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 51323791408

Divisors of 21555992384220

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 51323791391 102647582782 153971374173 205295165564 256618956955 307942748346 359266539737 513237913910 615885496692 718533079474 769856870865 1026475827820 1077799619211 1437066158948 1539713741730 1796332698685 2155599238422 3079427483460 3592665397370 4311198476844 5388998096055 7185330794740 10777996192110 21555992384220
• Sum of all divisors σ(n): 68979175630848
• Sum of proper divisors (its aliquot sum) s(n): 47423183246628
• 21555992384220 is an abundant number, because the sum of its proper divisors (47423183246628) is greater than itself. Its abundance is 25867190862408

Bases of 21555992384220

• Binary: 100111001101011100101010001001101001011011100₂
• Hexadecimal: 0x139AE544D2DC
• Base-36: 7N2OPB10C

Squares and roots of 21555992384220

• 21555992384220 squared (21555992384220²) is 464660807668550640105008400
• 21555992384220 cubed (21555992384220³) is 10016224831348791772108967171479127448000
• The square root of 21555992384220 is 4642843.1358619041
• The cube root of 21555992384220 is 27830.6066926147

Scales and comparisons

• 21,555,992,384,220 seconds is equal to 685,413 years, 45 weeks, 5 days, 14 hours, 17 minutes.
• To count from 1 to 21,555,992,384,220 would take you about one million, seven hundred thirteen thousand, five hundred thirty-four 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 21555992384220 cubic inches would be around 2319.2 feet tall.

Recreational maths with 21555992384220

• 21555992384220 backwards is 02248329955512
• The number of decimal digits it has is: 14
• The sum of 21555992384220's digits is 57
• More coming soon!