20489039872

Names of 20489039872

• Cardinal: 20489039872 can be written as Twenty billion, four hundred eighty-nine million, thirty-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.0489039872 × 10¹⁰

Factors of 20489039872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 714610

Divisors of 20489039872

• Number of divisors d(n): 52
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 2048 3584 4096 7168 14336 28672 714601 1429202 2858404 5002207 5716808 10004414 11433616 20008828 22867232 40017656 45734464 80035312 91468928 160070624 182937856 320141248 365875712 640282496 731751424 1280564992 1463502848 2561129984 2927005696 5122259968 10244519936 20489039872
• Sum of all divisors σ(n): 46826439856
• Sum of proper divisors (its aliquot sum) s(n): 26337399984
• 20489039872 is an abundant number, because the sum of its proper divisors (26337399984) is greater than itself. Its abundance is 5848360112

Bases of 20489039872

• Binary: 10011000101001111011111000000000000₂
• Hexadecimal: 0x4C53DF000
• Base-36: 9EUN8CG

Squares and roots of 20489039872

• 20489039872 squared (20489039872²) is 419800754876405776384
• 20489039872 cubed (20489039872³) is 8601314404958376384382891982848
• The square root of 20489039872 is 143139.9310884283
• The cube root of 20489039872 is 2736.3640066061

Scales and comparisons

• 20,489,039,872 seconds is equal to 651 years, 25 weeks, 2 days, 15 hours, 57 minutes, 52 seconds.
• To count from 1 to 20,489,039,872 would take you about one thousand, three hundred two 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 20489039872 cubic inches would be around 228 feet tall.

Recreational maths with 20489039872

• 20489039872 backwards is 27893098402
• The number of decimal digits it has is: 11
• The sum of 20489039872's digits is 52
• More coming soon!