20039516721

Names of 20039516721

• Cardinal: 20039516721 can be written as Twenty billion, thirty-nine million, five hundred sixteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 2.0039516721 × 10¹⁰

Factors of 20039516721

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 117

Divisors of 20039516721

• Number of divisors d(n): 105
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 107 147 189 243 321 343 441 567 729 749 963 1029 1323 1701 2247 2401 2889 3087 3969 5103 5243 6741 7203 8667 9261 11449 11907 15729 20223 21609 26001 27783 34347 35721 36701 47187 60669 64827 78003 80143 83349 103041 110103 141561 182007 194481 240429 250047 256907 309123 330309 424683 546021 561001 583443 721287 770721 927369 990927 1274049 1683003 1750329 2163861 2312163 2782107 2972781 3822147 3927007 5049009 6491583 6936489 8346321 8918343 11781021 15147027 19474749 20809467 26755029 27489049 35343063 45441081 58424247 62428401 82467147 106029189 136323243 187285203 247401441 318087567 408969729 742204323 954262701 2226612969 2862788103 6679838907 20039516721
• Sum of all divisors σ(n): 35381674601
• Sum of proper divisors (its aliquot sum) s(n): 15342157880
• 20039516721 is a deficient number, because the sum of its proper divisors (15342157880) is less than itself. Its deficiency is 4697358841

Bases of 20039516721

• Binary: 10010101010011100101100001000110001₂
• Hexadecimal: 0x4AA72C231
• Base-36: 97F0E29

Squares and roots of 20039516721

• 20039516721 squared (20039516721²) is 401582230411238591841
• 20039516721 cubed (20039516721³) is 8047513821182490467518213673361
• 20039516721 is a perfect square number. Its square root is 141561
• The cube root of 20039516721 is 2716.2041885139

Scales and comparisons

• 20,039,516,721 seconds is equal to 637 years, 10 weeks, 20 hours, 25 minutes, 21 seconds.
• To count from 1 to 20,039,516,721 would take you about one thousand, two hundred seventy-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 20039516721 cubic inches would be around 226.4 feet tall.

Recreational maths with 20039516721

• 20039516721 backwards is 12761593002
• The number of decimal digits it has is: 11
• The sum of 20039516721's digits is 36
• More coming soon!