18245120

Names of 18245120

• Cardinal: 18245120 can be written as Eighteen million, two hundred forty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.824512 × 10⁷

Factors of 18245120

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7134

Divisors of 18245120

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 7127 14254 28508 35635 57016 71270 114032 142540 228064 285080 456128 570160 912256 1140320 1824512 2280640 3649024 4561280 9122560 18245120
• Sum of all divisors σ(n): 43751664
• Sum of proper divisors (its aliquot sum) s(n): 25506544
• 18245120 is an abundant number, because the sum of its proper divisors (25506544) is greater than itself. Its abundance is 7261424

Bases of 18245120

• Binary: 1000101100110011000000000₂
• Hexadecimal: 0x1166600
• Base-36: AV20W

Squares and roots of 18245120

• 18245120 squared (18245120²) is 332884403814400
• 18245120 cubed (18245120³) is 6073515893722185728000
• The square root of 18245120 is 4271.4306736737
• The cube root of 18245120 is 263.2584023663

Scales and comparisons

• 18,245,120 seconds is equal to 30 weeks, 1 day, 4 hours, 5 minutes, 20 seconds.
• To count from 1 to 18,245,120 would take you about forty-five 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 18245120 cubic inches would be around 21.9 feet tall.

Recreational maths with 18245120

• 18245120 backwards is 02154281
• The number of decimal digits it has is: 8
• The sum of 18245120's digits is 23
• More coming soon!