13445890

Names of 13445890

• Cardinal: 13445890 can be written as Thirteen million, four hundred forty-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.344589 × 10⁷

Factors of 13445890

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1344596

Divisors of 13445890

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1344589 2689178 6722945 13445890
• Sum of all divisors σ(n): 24202620
• Sum of proper divisors (its aliquot sum) s(n): 10756730
• 13445890 is a deficient number, because the sum of its proper divisors (10756730) is less than itself. Its deficiency is 2689160

Bases of 13445890

• Binary: 110011010010101100000010₂
• Hexadecimal: 0xCD2B02
• Base-36: 806WY

Squares and roots of 13445890

• 13445890 squared (13445890²) is 180791957892100
• 13445890 cubed (13445890³) is 2430908778701808469000
• The square root of 13445890 is 3666.8637825805
• The cube root of 13445890 is 237.7916048837

Scales and comparisons

• 13,445,890 seconds is equal to 22 weeks, 1 day, 14 hours, 58 minutes, 10 seconds.
• To count from 1 to 13,445,890 would take you about thirty-three 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 13445890 cubic inches would be around 19.8 feet tall.

Recreational maths with 13445890

• 13445890 backwards is 09854431
• The number of decimal digits it has is: 8
• The sum of 13445890's digits is 34
• More coming soon!