18020789

Names of 18020789

• Cardinal: 18020789 can be written as Eighteen million, twenty thousand, seven hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8020789 × 10⁷

Factors of 18020789

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1315

Divisors of 18020789

• Number of divisors d(n): 8
• Complete list of divisors:
  1 67 277 971 18559 65057 268967 18020789
• Sum of all divisors σ(n): 18374688
• Sum of proper divisors (its aliquot sum) s(n): 353899
• 18020789 is a deficient number, because the sum of its proper divisors (353899) is less than itself. Its deficiency is 17666890

Bases of 18020789

• Binary: 1000100101111100110110101₂
• Hexadecimal: 0x112F9B5
• Base-36: AQ8XH

Squares and roots of 18020789

• 18020789 squared (18020789²) is 324748836182521
• 18020789 cubed (18020789³) is 5852230254840776429069
• The square root of 18020789 is 4245.0899872677
• The cube root of 18020789 is 262.1749942941

Scales and comparisons

• 18,020,789 seconds is equal to 29 weeks, 5 days, 13 hours, 46 minutes, 29 seconds.
• To count from 1 to 18,020,789 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 18020789 cubic inches would be around 21.8 feet tall.

Recreational maths with 18020789

• 18020789 backwards is 98702081
• The number of decimal digits it has is: 8
• The sum of 18020789's digits is 35
• More coming soon!