18940520

Names of 18940520

• Cardinal: 18940520 can be written as Eighteen million, nine hundred forty thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.894052 × 10⁷

Factors of 18940520

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 473520

Divisors of 18940520

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 473513 947026 1894052 2367565 3788104 4735130 9470260 18940520
• Sum of all divisors σ(n): 42616260
• Sum of proper divisors (its aliquot sum) s(n): 23675740
• 18940520 is an abundant number, because the sum of its proper divisors (23675740) is greater than itself. Its abundance is 4735220

Bases of 18940520

• Binary: 1001000010000001001101000₂
• Hexadecimal: 0x1210268
• Base-36: B9YLK

Squares and roots of 18940520

• 18940520 squared (18940520²) is 358743297870400
• 18940520 cubed (18940520³) is 6794784608180268608000
• The square root of 18940520 is 4352.0707714833
• The cube root of 18940520 is 266.5614237479

Scales and comparisons

• 18,940,520 seconds is equal to 31 weeks, 2 days, 5 hours, 15 minutes, 20 seconds.
• To count from 1 to 18,940,520 would take you about forty-six 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 18940520 cubic inches would be around 22.2 feet tall.

Recreational maths with 18940520

• 18940520 backwards is 02504981
• The number of decimal digits it has is: 8
• The sum of 18940520's digits is 29
• More coming soon!