18118190

Names of 18118190

• Cardinal: 18118190 can be written as Eighteen million, one hundred eighteen thousand, one hundred ninety.

Scientific notation

• Scientific notation: 1.811819 × 10⁷

Factors of 18118190

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1811826

Divisors of 18118190

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 1811819 3623638 9059095 18118190
• Sum of all divisors σ(n): 32612760
• Sum of proper divisors (its aliquot sum) s(n): 14494570
• 18118190 is a deficient number, because the sum of its proper divisors (14494570) is less than itself. Its deficiency is 3623620

Bases of 18118190

• Binary: 1000101000111011000101110₂
• Hexadecimal: 0x114762E
• Base-36: ASC32

Squares and roots of 18118190

• 18118190 squared (18118190²) is 328268808876100
• 18118190 cubed (18118190³) is 5947636650290866259000
• The square root of 18118190 is 4256.5467224031
• The cube root of 18118190 is 262.6464911739

Scales and comparisons

• 18,118,190 seconds is equal to 29 weeks, 6 days, 16 hours, 49 minutes, 50 seconds.
• To count from 1 to 18,118,190 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 18118190 cubic inches would be around 21.9 feet tall.

Recreational maths with 18118190

• 18118190 backwards is 09181181
• The number of decimal digits it has is: 8
• The sum of 18118190's digits is 29
• More coming soon!