20998013784

Names of 20998013784

• Cardinal: 20998013784 can be written as Twenty billion, nine hundred ninety-eight million, thirteen thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.0998013784 × 10¹⁰

Factors of 20998013784

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2705

Divisors of 20998013784

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 11 12 22 24 33 44 66 88 121 132 242 264 363 484 726 968 1452 2689 2904 5378 8067 10756 16134 21512 29579 32268 59158 64536 88737 118316 177474 236632 325369 354948 650738 709896 976107 1301476 1952214 2602952 3904428 7230721 7808856 14461442 21692163 28922884 43384326 57845768 79537931 86768652 159075862 173537304 238613793 318151724 477227586 636303448 874917241 954455172 1749834482 1908910344 2624751723 3499668964 5249503446 6999337928 10499006892 20998013784
• Sum of all divisors σ(n): 57722619780
• Sum of proper divisors (its aliquot sum) s(n): 36724605996
• 20998013784 is an abundant number, because the sum of its proper divisors (36724605996) is greater than itself. Its abundance is 15726592212

Bases of 20998013784

• Binary: 10011100011100101000100001101011000₂
• Hexadecimal: 0x4E3944358
• Base-36: 9N9OB4O

Squares and roots of 20998013784

• 20998013784 squared (20998013784²) is 440916582873053998656
• 20998013784 cubed (20998013784³) is 9258372484762566185955005474304
• The square root of 20998013784 is 144906.9142035673
• The cube root of 20998013784 is 2758.8371923793

Scales and comparisons

• 20,998,013,784 seconds is equal to 667 years, 34 weeks, 6 days, 13 hours, 36 minutes, 24 seconds.
• To count from 1 to 20,998,013,784 would take you about one thousand, three hundred thirty-five 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 20998013784 cubic inches would be around 229.9 feet tall.

Recreational maths with 20998013784

• 20998013784 backwards is 48731089902
• The number of decimal digits it has is: 11
• The sum of 20998013784's digits is 51
• More coming soon!