18999413

Names of 18999413

• Cardinal: 18999413 can be written as Eighteen million, nine hundred ninety-nine thousand, four hundred thirteen.

Scientific notation

• Scientific notation: 1.8999413 × 10⁷

Factors of 18999413

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1015

Divisors of 18999413

• Number of divisors d(n): 8
• Complete list of divisors:
  1 101 313 601 31613 60701 188113 18999413
• Sum of all divisors σ(n): 19280856
• Sum of proper divisors (its aliquot sum) s(n): 281443
• 18999413 is a deficient number, because the sum of its proper divisors (281443) is less than itself. Its deficiency is 18717970

Bases of 18999413

• Binary: 1001000011110100001110101₂
• Hexadecimal: 0x121E875
• Base-36: BB81H

Squares and roots of 18999413

• 18999413 squared (18999413²) is 360977694344569
• 18999413 cubed (18999413³) is 6858364298640230737997
• The square root of 18999413 is 4358.8316095029
• The cube root of 18999413 is 266.8374168583

Scales and comparisons

• 18,999,413 seconds is equal to 31 weeks, 2 days, 21 hours, 36 minutes, 53 seconds.
• To count from 1 to 18,999,413 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 18999413 cubic inches would be around 22.2 feet tall.

Recreational maths with 18999413

• 18999413 backwards is 31499981
• The number of decimal digits it has is: 8
• The sum of 18999413's digits is 44
• More coming soon!