19749109

Names of 19749109

• Cardinal: 19749109 can be written as Nineteen million, seven hundred forty-nine thousand, one hundred nine.

Scientific notation

• Scientific notation: 1.9749109 × 10⁷

Factors of 19749109

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 9706

Divisors of 19749109

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2903 6803 19749109
• Sum of all divisors σ(n): 19758816
• Sum of proper divisors (its aliquot sum) s(n): 9707
• 19749109 is a deficient number, because the sum of its proper divisors (9707) is less than itself. Its deficiency is 19739402

Bases of 19749109

• Binary: 1001011010101100011110101₂
• Hexadecimal: 0x12D58F5
• Base-36: BRAID

Squares and roots of 19749109

• 19749109 squared (19749109²) is 390027306293881
• 19749109 cubed (19749109³) is 7702691784974241902029
• The square root of 19749109 is 4443.9969621951
• The cube root of 19749109 is 270.3019438715

Scales and comparisons

• 19,749,109 seconds is equal to 32 weeks, 4 days, 13 hours, 51 minutes, 49 seconds.
• To count from 1 to 19,749,109 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 19749109 cubic inches would be around 22.5 feet tall.

Recreational maths with 19749109

• 19749109 backwards is 90194791
• The number of decimal digits it has is: 8
• The sum of 19749109's digits is 40
• More coming soon!