40109991

Names of 40109991

• Cardinal: 40109991 can be written as Forty million, one hundred nine thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 4.0109991 × 10⁷

Factors of 40109991

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7701

Divisors of 40109991

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 2647 5051 7941 15153 13369997 40109991
• Sum of all divisors σ(n): 53510784
• Sum of proper divisors (its aliquot sum) s(n): 13400793
• 40109991 is a deficient number, because the sum of its proper divisors (13400793) is less than itself. Its deficiency is 26709198

Bases of 40109991

• Binary: 10011001000000011110100111₂
• Hexadecimal: 0x26407A7
• Base-36: NVP2F

Squares and roots of 40109991

• 40109991 squared (40109991²) is 1608811378020081
• 40109991 cubed (40109991³) is 64529409893083046729271
• The square root of 40109991 is 6333.2449028915
• The cube root of 40109991 is 342.3083723901

Scales and comparisons

• 40,109,991 seconds is equal to 1 year, 14 weeks, 2 days, 5 hours, 39 minutes, 51 seconds.
• To count from 1 to 40,109,991 would take you about forty-seven weeks!

  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 40109991 cubic inches would be around 28.5 feet tall.

Recreational maths with 40109991

• 40109991 backwards is 19990104
• The number of decimal digits it has is: 8
• The sum of 40109991's digits is 33
• More coming soon!