188129009

Names of 188129009

• Cardinal: 188129009 can be written as One hundred eighty-eight million, one hundred twenty-nine thousand and nine.

Scientific notation

• Scientific notation: 1.88129009 × 10⁸

Factors of 188129009

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 188129009

Divisors of 188129009

• Number of divisors d(n): 2
• Complete list of divisors:
  1 188129009
• Sum of all divisors σ(n): 188129010
• Sum of proper divisors (its aliquot sum) s(n): 1
• 188129009 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 188129008

Bases of 188129009

• Binary: 1011001101101001111011110001₂
• Hexadecimal: 0xB369EF1
• Base-36: 34099T

Squares and roots of 188129009

• 188129009 squared (188129009²) is 35392524027322081
• 188129009 cubed (188129009³) is 6658360471268792022347729
• The square root of 188129009 is 13716.0128681773
• The cube root of 188129009 is 572.9964385095

Scales and comparisons

• 188,129,009 seconds is equal to 5 years, 51 weeks, 10 hours, 3 minutes, 29 seconds.
• To count from 1 to 188,129,009 would take you about 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 188129009 cubic inches would be around 47.7 feet tall.

Recreational maths with 188129009

• 188129009 backwards is 900921881
• The number of decimal digits it has is: 9
• The sum of 188129009's digits is 38
• More coming soon!