18123013

Names of 18123013

• Cardinal: 18123013 can be written as Eighteen million, one hundred twenty-three thousand and thirteen.

Scientific notation

• Scientific notation: 1.8123013 × 10⁷

Factors of 18123013

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 58214

Divisors of 18123013

• Number of divisors d(n): 4
• Complete list of divisors:
  1 313 57901 18123013
• Sum of all divisors σ(n): 18181228
• Sum of proper divisors (its aliquot sum) s(n): 58215
• 18123013 is a deficient number, because the sum of its proper divisors (58215) is less than itself. Its deficiency is 18064798

Bases of 18123013

• Binary: 1000101001000100100000101₂
• Hexadecimal: 0x1148905
• Base-36: ASFT1

Squares and roots of 18123013

• 18123013 squared (18123013²) is 328443600198169
• 18123013 cubed (18123013³) is 5952387636158219363197
• The square root of 18123013 is 4257.1132237703
• The cube root of 18123013 is 262.6697943045

Scales and comparisons

• 18,123,013 seconds is equal to 29 weeks, 6 days, 18 hours, 10 minutes, 13 seconds.
• To count from 1 to 18,123,013 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 18123013 cubic inches would be around 21.9 feet tall.

Recreational maths with 18123013

• 18123013 backwards is 31032181
• The number of decimal digits it has is: 8
• The sum of 18123013's digits is 19
• More coming soon!