129906

Names of 129906

• Cardinal: 129906 can be written as One hundred twenty-nine thousand, nine hundred six.

Scientific notation

• Scientific notation: 1.29906 × 10⁵

Factors of 129906

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1043

Divisors of 129906

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 63 126 1031 2062 3093 6186 7217 9279 14434 18558 21651 43302 64953 129906
• Sum of all divisors σ(n): 321984
• Sum of proper divisors (its aliquot sum) s(n): 192078
• 129906 is an abundant number, because the sum of its proper divisors (192078) is greater than itself. Its abundance is 62172

Bases of 129906

• Binary: 11111101101110010₂
• Hexadecimal: 0x1FB72
• Base-36: 2S8I

Squares and roots of 129906

• 129906 squared (129906²) is 16875568836
• 129906 cubed (129906³) is 2192237645209416
• The square root of 129906 is 360.4247494277
• The cube root of 129906 is 50.6457573771

Scales and comparisons

• 129,906 seconds is equal to 1 day, 12 hours, 5 minutes, 6 seconds.
• To count from 1 to 129,906 would take you about twelve hours.

  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 129906 cubic inches would be around 4.2 feet tall.

Recreational maths with 129906

• 129906 backwards is 609921
• The number of decimal digits it has is: 6
• The sum of 129906's digits is 27
• More coming soon!