890

Names of 890

• Cardinal: 890 can be written as Eight hundred ninety.

Scientific notation

• Scientific notation: 8.9 × 10²

Factors of 890

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 96

Divisors of 890

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 89 178 445 890
• Sum of all divisors σ(n): 1620
• Sum of proper divisors (its aliquot sum) s(n): 730
• 890 is a deficient number, because the sum of its proper divisors (730) is less than itself. Its deficiency is 160

Bases of 890

• Binary: 1101111010₂
• Hexadecimal: 0x37A
• Base-36: OQ

Squares and roots of 890

• 890 squared (890²) is 792100
• 890 cubed (890³) is 704969000
• The square root of 890 is 29.8328677803
• The cube root of 890 is 9.6190017157

Scales and comparisons

• 890 seconds is equal to 14 minutes, 50 seconds.
• To count from 1 to 890 would take you about seven minutes.

  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 890 cubic inches would be around 0.8 feet tall.

Recreational maths with 890

• 890 backwards is 098
• The number of decimal digits it has is: 3
• The sum of 890's digits is 17
• More coming soon!