18013657

Names of 18013657

• Cardinal: 18013657 can be written as Eighteen million, thirteen thousand, six hundred fifty-seven.

Scientific notation

• Scientific notation: 1.8013657 × 10⁷

Factors of 18013657

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18013657

Divisors of 18013657

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18013657
• Sum of all divisors σ(n): 18013658
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18013657 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18013656

Bases of 18013657

• Binary: 1000100101101110111011001₂
• Hexadecimal: 0x112DDD9
• Base-36: AQ3FD

Squares and roots of 18013657

• 18013657 squared (18013657²) is 324491838513649
• 18013657 cubed (18013657³) is 5845284678284262904393
• The square root of 18013657 is 4244.2498748307
• The cube root of 18013657 is 262.1404031563

Scales and comparisons

• 18,013,657 seconds is equal to 29 weeks, 5 days, 11 hours, 47 minutes, 37 seconds.
• To count from 1 to 18,013,657 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 18013657 cubic inches would be around 21.8 feet tall.

Recreational maths with 18013657

• 18013657 backwards is 75631081
• The number of decimal digits it has is: 8
• The sum of 18013657's digits is 31
• More coming soon!