1388143209

Names of 1388143209

• Cardinal: 1388143209 can be written as One billion, three hundred eighty-eight million, one hundred forty-three thousand, two hundred nine.

Scientific notation

• Scientific notation: 1.388143209 × 10⁹

Factors of 1388143209

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7842679

Divisors of 1388143209

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 59 177 7842617 23527851 462714403 1388143209
• Sum of all divisors σ(n): 1882228320
• Sum of proper divisors (its aliquot sum) s(n): 494085111
• 1388143209 is a deficient number, because the sum of its proper divisors (494085111) is less than itself. Its deficiency is 894058098

Bases of 1388143209

• Binary: 1010010101111010110001001101001₂
• Hexadecimal: 0x52BD6269
• Base-36: MYGQ5L

Squares and roots of 1388143209

• 1388143209 squared (1388143209²) is 1926941568692817681
• 1388143209 cubed (1388143209³) is 2674870852720741870955278329
• The square root of 1388143209 is 37257.7939363027
• The cube root of 1388143209 is 1115.5218746503

Scales and comparisons

• 1,388,143,209 seconds is equal to 44 years, 7 weeks, 1 day, 11 hours, 20 minutes, 9 seconds.
• To count from 1 to 1,388,143,209 would take you about eighty-eight 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 1388143209 cubic inches would be around 93 feet tall.

Recreational maths with 1388143209

• 1388143209 backwards is 9023418831
• The number of decimal digits it has is: 10
• The sum of 1388143209's digits is 39
• More coming soon!