20189743

Names of 20189743

• Cardinal: 20189743 can be written as Twenty million, one hundred eighty-nine thousand, seven hundred forty-three.

Scientific notation

• Scientific notation: 2.0189743 × 10⁷

Factors of 20189743

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 726

Divisors of 20189743

• Number of divisors d(n): 16
• Complete list of divisors:
  1 7 47 109 329 563 763 3941 5123 26461 35861 61367 185227 429569 2884249 20189743
• Sum of all divisors σ(n): 23823360
• Sum of proper divisors (its aliquot sum) s(n): 3633617
• 20189743 is a deficient number, because the sum of its proper divisors (3633617) is less than itself. Its deficiency is 16556126

Bases of 20189743

• Binary: 1001101000001001000101111₂
• Hexadecimal: 0x134122F
• Base-36: C0QI7

Squares and roots of 20189743

• 20189743 squared (20189743²) is 407625722406049
• 20189743 cubed (20189743³) is 8229858575567470955407
• The square root of 20189743 is 4493.2997896869
• The cube root of 20189743 is 272.2974641813

Scales and comparisons

• 20,189,743 seconds is equal to 33 weeks, 2 days, 16 hours, 15 minutes, 43 seconds.
• To count from 1 to 20,189,743 would take you about fifty 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 20189743 cubic inches would be around 22.7 feet tall.

Recreational maths with 20189743

• 20189743 backwards is 34798102
• The number of decimal digits it has is: 8
• The sum of 20189743's digits is 34
• More coming soon!