20397431881980

Names of 20397431881980

• Cardinal: 20397431881980 can be written as Twenty trillion, three hundred ninety-seven billion, four hundred thirty-one million, eight hundred eighty-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 2.039743188198 × 10¹³

Factors of 20397431881980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5964161398

Divisors of 20397431881980

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 5964161369 11928322738 17892484107 23856645476 29820806845 35784968214 53677452321 59641613690 71569936428 89462420535 107354904642 113319066011 119283227380 178924841070 214709809284 226638132022 268387261605 339957198033 357849682140 453276264044 536774523210 566595330055 679914396066 1019871594099 1073549046420 1133190660110 1359828792132 1699785990165 2039743188198 2266381320220 3399571980330 4079486376396 5099357970495 6799143960660 10198715940990 20397431881980
• Sum of all divisors σ(n): 65128642160400
• Sum of proper divisors (its aliquot sum) s(n): 44731210278420
• 20397431881980 is an abundant number, because the sum of its proper divisors (44731210278420) is greater than itself. Its abundance is 24333778396440

Bases of 20397431881980

• Binary: 100101000110100100101101011101000000011111100₂
• Hexadecimal: 0x128D25AE80FC
• Base-36: 78AG8AO70

Squares and roots of 20397431881980

• 20397431881980 squared (20397431881980²) is 416055227380014164648720400
• 20397431881980 cubed (20397431881980³) is 8486458159625539147069806534170818392000
• The square root of 20397431881980 is 4516351.6118632747
• The cube root of 20397431881980 is 27322.7975260077

Scales and comparisons

• 20,397,431,881,980 seconds is equal to 648,575 years, 12 weeks, 3 days, 12 hours, 33 minutes.
• To count from 1 to 20,397,431,881,980 would take you about one million, six hundred twenty-one thousand, four hundred thirty-eight 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 20397431881980 cubic inches would be around 2276.9 feet tall.

Recreational maths with 20397431881980

• 20397431881980 backwards is 08918813479302
• The number of decimal digits it has is: 14
• The sum of 20397431881980's digits is 63
• More coming soon!