1909742740

Names of 1909742740

• Cardinal: 1909742740 can be written as One billion, nine hundred nine million, seven hundred forty-two thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.90974274 × 10⁹

Factors of 1909742740

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 95487144

Divisors of 1909742740

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 5 10 20 95487137 190974274 381948548 477435685 954871370 1909742740
• Sum of all divisors σ(n): 4010459796
• Sum of proper divisors (its aliquot sum) s(n): 2100717056
• 1909742740 is an abundant number, because the sum of its proper divisors (2100717056) is greater than itself. Its abundance is 190974316

Bases of 1909742740

• Binary: 1110001110101000101110010010100₂
• Hexadecimal: 0x71D45C94
• Base-36: VL0EXG

Squares and roots of 1909742740

• 1909742740 squared (1909742740²) is 3647117332982707600
• 1909742740 cubed (1909742740³) is 6965055848591888384642824000
• The square root of 1909742740 is 43700.6034283281
• The cube root of 1909742740 is 1240.6757373095

Scales and comparisons

• 1,909,742,740 seconds is equal to 60 years, 37 weeks, 4 days, 12 hours, 5 minutes, 40 seconds.
• To count from 1 to 1,909,742,740 would take you about one hundred twenty-one 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 1909742740 cubic inches would be around 103.4 feet tall.

Recreational maths with 1909742740

• 1909742740 backwards is 0472479091
• The number of decimal digits it has is: 10
• The sum of 1909742740's digits is 43
• More coming soon!