18998401

Names of 18998401

• Cardinal: 18998401 can be written as Eighteen million, nine hundred ninety-eight thousand, four hundred one.

Scientific notation

• Scientific notation: 1.8998401 × 10⁷

Factors of 18998401

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1117570

Divisors of 18998401

• Number of divisors d(n): 4
• Complete list of divisors:
  1 17 1117553 18998401
• Sum of all divisors σ(n): 20115972
• Sum of proper divisors (its aliquot sum) s(n): 1117571
• 18998401 is a deficient number, because the sum of its proper divisors (1117571) is less than itself. Its deficiency is 17880830

Bases of 18998401

• Binary: 1001000011110010010000001₂
• Hexadecimal: 0x121E481
• Base-36: BB79D

Squares and roots of 18998401

• 18998401 squared (18998401²) is 360939240556801
• 18998401 cubed (18998401³) is 6857268428733568675201
• The square root of 18998401 is 4358.7155218023
• The cube root of 18998401 is 266.8326790933

Scales and comparisons

• 18,998,401 seconds is equal to 31 weeks, 2 days, 21 hours, 20 minutes, 1 second.
• To count from 1 to 18,998,401 would take you about forty-seven 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 18998401 cubic inches would be around 22.2 feet tall.

Recreational maths with 18998401

• 18998401 backwards is 10489981
• The number of decimal digits it has is: 8
• The sum of 18998401's digits is 40
• More coming soon!