20015143

Names of 20015143

• Cardinal: 20015143 can be written as Twenty million, fifteen thousand, one hundred forty-three.

Scientific notation

• Scientific notation: 2.0015143 × 10⁷

Factors of 20015143

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20015143

Divisors of 20015143

• Number of divisors d(n): 2
• Complete list of divisors:
  1 20015143
• Sum of all divisors σ(n): 20015144
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20015143 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20015142

Bases of 20015143

• Binary: 1001100010110100000100111₂
• Hexadecimal: 0x1316827
• Base-36: BWZS7

Squares and roots of 20015143

• 20015143 squared (20015143²) is 400605949310449
• 20015143 cubed (20015143³) is 8018185362099388129207
• The square root of 20015143 is 4473.8286735187
• The cube root of 20015143 is 271.5102517533

Scales and comparisons

• 20,015,143 seconds is equal to 33 weeks, 15 hours, 45 minutes, 43 seconds.
• To count from 1 to 20,015,143 would take you about forty-nine 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 20015143 cubic inches would be around 22.6 feet tall.

Recreational maths with 20015143

• 20015143 backwards is 34151002
• The number of decimal digits it has is: 8
• The sum of 20015143's digits is 16
• More coming soon!