1208139135

Names of 1208139135

• Cardinal: 1208139135 can be written as One billion, two hundred eight million, one hundred thirty-nine thousand, one hundred thirty-five.

Scientific notation

• Scientific notation: 1.208139135 × 10⁹

Factors of 1208139135

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 11506102

Divisors of 1208139135

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 5 7 15 21 35 105 11506087 34518261 57530435 80542609 172591305 241627827 402713045 1208139135
• Sum of all divisors σ(n): 2209168896
• Sum of proper divisors (its aliquot sum) s(n): 1001029761
• 1208139135 is a deficient number, because the sum of its proper divisors (1001029761) is less than itself. Its deficiency is 207109374

Bases of 1208139135

• Binary: 1001000000000101011110101111111₂
• Hexadecimal: 0x4802BD7F
• Base-36: JZAM4F

Squares and roots of 1208139135

• 1208139135 squared (1208139135²) is 1459600169518548225
• 1208139135 cubed (1208139135³) is 1763400086247992219007285375
• The square root of 1208139135 is 34758.2959162269
• The cube root of 1208139135 is 1065.0556915045

Scales and comparisons

• 1,208,139,135 seconds is equal to 38 years, 21 weeks, 4 days, 2 hours, 12 minutes, 15 seconds.
• To count from 1 to 1,208,139,135 would take you about seventy-six 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 1208139135 cubic inches would be around 88.8 feet tall.

Recreational maths with 1208139135

• 1208139135 backwards is 5319318021
• The number of decimal digits it has is: 10
• The sum of 1208139135's digits is 33
• More coming soon!