18386998

Names of 18386998

• Cardinal: 18386998 can be written as Eighteen million, three hundred eighty-six thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 1.8386998 × 10⁷

Factors of 18386998

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1313366

Divisors of 18386998

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 1313357 2626714 9193499 18386998
• Sum of all divisors σ(n): 31520592
• Sum of proper divisors (its aliquot sum) s(n): 13133594
• 18386998 is a deficient number, because the sum of its proper divisors (13133594) is less than itself. Its deficiency is 5253404

Bases of 18386998

• Binary: 1000110001001000000110110₂
• Hexadecimal: 0x1189036
• Base-36: AY3HY

Squares and roots of 18386998

• 18386998 squared (18386998²) is 338081695452004
• 18386998 cubed (18386998³) is 6216307458112606643992
• The square root of 18386998 is 4288.0062966371
• The cube root of 18386998 is 263.9390259397

Scales and comparisons

• 18,386,998 seconds is equal to 30 weeks, 2 days, 19 hours, 29 minutes, 58 seconds.
• To count from 1 to 18,386,998 would take you about forty-five 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 18386998 cubic inches would be around 22 feet tall.

Recreational maths with 18386998

• 18386998 backwards is 89968381
• The number of decimal digits it has is: 8
• The sum of 18386998's digits is 52
• More coming soon!