18138329

Names of 18138329

• Cardinal: 18138329 can be written as Eighteen million, one hundred thirty-eight thousand, three hundred twenty-nine.

Scientific notation

• Scientific notation: 1.8138329 × 10⁷

Factors of 18138329

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 71727

Divisors of 18138329

• Number of divisors d(n): 8
• Complete list of divisors:
  1 11 23 253 71693 788623 1648939 18138329
• Sum of all divisors σ(n): 20647872
• Sum of proper divisors (its aliquot sum) s(n): 2509543
• 18138329 is a deficient number, because the sum of its proper divisors (2509543) is less than itself. Its deficiency is 15628786

Bases of 18138329

• Binary: 1000101001100010011011001₂
• Hexadecimal: 0x114C4D9
• Base-36: ASRMH

Squares and roots of 18138329

• 18138329 squared (18138329²) is 328998978912241
• 18138329 cubed (18138329³) is 5967491720174289385289
• The square root of 18138329 is 4258.9117154503
• The cube root of 18138329 is 262.7437687183

Scales and comparisons

• 18,138,329 seconds is equal to 29 weeks, 6 days, 22 hours, 25 minutes, 29 seconds.
• To count from 1 to 18,138,329 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 18138329 cubic inches would be around 21.9 feet tall.

Recreational maths with 18138329

• 18138329 backwards is 92383181
• The number of decimal digits it has is: 8
• The sum of 18138329's digits is 35
• More coming soon!