19993970

Names of 19993970

• Cardinal: 19993970 can be written as Nineteen million, nine hundred ninety-three thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 1.999397 × 10⁷

Factors of 19993970

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 590

Divisors of 19993970

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 61 73 122 146 305 365 449 610 730 898 2245 4453 4490 8906 22265 27389 32777 44530 54778 65554 136945 163885 273890 327770 1999397 3998794 9996985 19993970
• Sum of all divisors σ(n): 37162800
• Sum of proper divisors (its aliquot sum) s(n): 17168830
• 19993970 is a deficient number, because the sum of its proper divisors (17168830) is less than itself. Its deficiency is 2825140

Bases of 19993970

• Binary: 1001100010001010101110010₂
• Hexadecimal: 0x1311572
• Base-36: BWJG2

Squares and roots of 19993970

• 19993970 squared (19993970²) is 399758836360900
• 19993970 cubed (19993970³) is 7992766181434743773000
• The square root of 19993970 is 4471.4617296807
• The cube root of 19993970 is 271.4144790203

Scales and comparisons

• 19,993,970 seconds is equal to 33 weeks, 9 hours, 52 minutes, 50 seconds.
• To count from 1 to 19,993,970 would take you about forty-nine 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 19993970 cubic inches would be around 22.6 feet tall.

Recreational maths with 19993970

• 19993970 backwards is 07939991
• The number of decimal digits it has is: 8
• The sum of 19993970's digits is 47
• More coming soon!