18002939

Names of 18002939

• Cardinal: 18002939 can be written as Eighteen million, two thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 1.8002939 × 10⁷

Factors of 18002939

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 14509

Divisors of 18002939

• Number of divisors d(n): 8
• Complete list of divisors:
  1 29 43 1247 14437 418673 620791 18002939
• Sum of all divisors σ(n): 19058160
• Sum of proper divisors (its aliquot sum) s(n): 1055221
• 18002939 is a deficient number, because the sum of its proper divisors (1055221) is less than itself. Its deficiency is 16947718

Bases of 18002939

• Binary: 1000100101011001111111011₂
• Hexadecimal: 0x112B3FB
• Base-36: APV5N

Squares and roots of 18002939

• 18002939 squared (18002939²) is 324105812637721
• 18002939 cubed (18002939³) is 5834857174462320262019
• The square root of 18002939 is 4242.9870374535
• The cube root of 18002939 is 262.0884022723

Scales and comparisons

• 18,002,939 seconds is equal to 29 weeks, 5 days, 8 hours, 48 minutes, 59 seconds.
• To count from 1 to 18,002,939 would take you about forty-four 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 18002939 cubic inches would be around 21.8 feet tall.

Recreational maths with 18002939

• 18002939 backwards is 93920081
• The number of decimal digits it has is: 8
• The sum of 18002939's digits is 32
• More coming soon!