30181018

Names of 30181018

• Cardinal: 30181018 can be written as Thirty million, one hundred eighty-one thousand and eighteen.

Scientific notation

• Scientific notation: 3.0181018 × 10⁷

Factors of 30181018

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 838

Divisors of 30181018

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 14 17 34 119 211 238 422 601 1202 1477 2954 3587 4207 7174 8414 10217 20434 25109 50218 71519 126811 143038 253622 887677 1775354 2155787 4311574 15090509 30181018
• Sum of all divisors σ(n): 55133568
• Sum of proper divisors (its aliquot sum) s(n): 24952550
• 30181018 is a deficient number, because the sum of its proper divisors (24952550) is less than itself. Its deficiency is 5228468

Bases of 30181018

• Binary: 1110011001000011010011010₂
• Hexadecimal: 0x1CC869A
• Base-36: HYVTM

Squares and roots of 30181018

• 30181018 squared (30181018²) is 910893847516324
• 30181018 cubed (30181018³) is 27491703607979429937832
• The square root of 30181018 is 5493.7253298649
• The cube root of 30181018 is 311.3469589273

Scales and comparisons

• 30,181,018 seconds is equal to 49 weeks, 6 days, 7 hours, 36 minutes, 58 seconds.
• To count from 1 to 30,181,018 would take you about twenty-two 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 30181018 cubic inches would be around 25.9 feet tall.

Recreational maths with 30181018

• 30181018 backwards is 81018103
• The number of decimal digits it has is: 8
• The sum of 30181018's digits is 22
• More coming soon!