19720008

Names of 19720008

• Cardinal: 19720008 can be written as Nineteen million, seven hundred twenty thousand and eight.

Scientific notation

• Scientific notation: 1.9720008 × 10⁷

Factors of 19720008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3580

Divisors of 19720008

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 28 33 36 42 44 56 63 66 72 77 84 88 99 126 132 154 168 198 231 252 264 308 396 462 504 616 693 792 924 1386 1848 2772 3557 5544 7114 10671 14228 21342 24899 28456 32013 39127 42684 49798 64026 74697 78254 85368 99596 117381 128052 149394 156508 199192 224091 234762 256104 273889 298788 313016 352143 448182 469524 547778 597576 704286 821667 896364 939048 1095556 1408572 1643334 1792728 2191112 2465001 2817144 3286668 4930002 6573336 9860004 19720008
• Sum of all divisors σ(n): 66605760
• Sum of proper divisors (its aliquot sum) s(n): 46885752
• 19720008 is an abundant number, because the sum of its proper divisors (46885752) is greater than itself. Its abundance is 27165744

Bases of 19720008

• Binary: 1001011001110011101001000₂
• Hexadecimal: 0x12CE748
• Base-36: BQO20

Squares and roots of 19720008

• 19720008 squared (19720008²) is 388878715520064
• 19720008 cubed (19720008³) is 7668691381085386240512
• The square root of 19720008 is 4440.7215629897
• The cube root of 19720008 is 270.1691121629

Scales and comparisons

• 19,720,008 seconds is equal to 32 weeks, 4 days, 5 hours, 46 minutes, 48 seconds.
• To count from 1 to 19,720,008 would take you about forty-eight weeks!

  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 19720008 cubic inches would be around 22.5 feet tall.

Recreational maths with 19720008

• 19720008 backwards is 80002791
• The number of decimal digits it has is: 8
• The sum of 19720008's digits is 27
• More coming soon!