20939340513

Names of 20939340513

• Cardinal: 20939340513 can be written as Twenty billion, nine hundred thirty-nine million, three hundred forty thousand, five hundred thirteen.

Scientific notation

• Scientific notation: 2.0939340513 × 10¹⁰

Factors of 20939340513

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 12838

Divisors of 20939340513

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 13 21 39 73 83 91 219 249 273 511 581 949 1079 1533 1743 2847 3237 6059 6643 7553 12659 18177 19929 22659 37977 42413 78767 88613 127239 164567 236301 265839 493701 551369 924107 1050697 1151969 1654107 2772321 3152091 3455907 6468749 7354879 12013391 13659061 19406247 22064637 36040173 40977183 76700881 84093737 95613427 230102643 252281211 286840281 536906167 997111453 1610718501 2991334359 6979780171 20939340513
• Sum of all divisors σ(n): 35255162880
• Sum of proper divisors (its aliquot sum) s(n): 14315822367
• 20939340513 is a deficient number, because the sum of its proper divisors (14315822367) is less than itself. Its deficiency is 6623518146

Bases of 20939340513

• Binary: 10011100000000101001111101011100001₂
• Hexadecimal: 0x4E014FAE1
• Base-36: 9MAQQJL

Squares and roots of 20939340513

• 20939340513 squared (20939340513²) is 438455981119363103169
• 20939340513 cubed (20939340513³) is 9180979088619842914944040385697
• The square root of 20939340513 is 144704.3209893885
• The cube root of 20939340513 is 2756.2651871459

Scales and comparisons

• 20,939,340,513 seconds is equal to 665 years, 41 weeks, 6 days, 11 hours, 28 minutes, 33 seconds.
• To count from 1 to 20,939,340,513 would take you about one thousand, three hundred thirty-one 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 20939340513 cubic inches would be around 229.7 feet tall.

Recreational maths with 20939340513

• 20939340513 backwards is 31504393902
• 20939340513 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20939340513's digits is 39
• More coming soon!