12018890

Names of 12018890

• Cardinal: 12018890 can be written as Twelve million, eighteen thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.201889 × 10⁷

Factors of 12018890

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1646

Divisors of 12018890

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 13 26 59 65 118 130 295 590 767 1534 1567 3134 3835 7670 7835 15670 20371 40742 92453 101855 184906 203710 462265 924530 1201889 2403778 6009445 12018890
• Sum of all divisors σ(n): 23708160
• Sum of proper divisors (its aliquot sum) s(n): 11689270
• 12018890 is a deficient number, because the sum of its proper divisors (11689270) is less than itself. Its deficiency is 329620

Bases of 12018890

• Binary: 101101110110010011001010₂
• Hexadecimal: 0xB764CA
• Base-36: 75LU2

Squares and roots of 12018890

• 12018890 squared (12018890²) is 144453716832100
• 12018890 cubed (12018890³) is 1736173332696158369000
• The square root of 12018890 is 3466.8270796219
• The cube root of 12018890 is 229.0629169303

Scales and comparisons

• 12,018,890 seconds is equal to 19 weeks, 6 days, 2 hours, 34 minutes, 50 seconds.
• To count from 1 to 12,018,890 would take you about twenty-nine 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 12018890 cubic inches would be around 19.1 feet tall.

Recreational maths with 12018890

• 12018890 backwards is 09881021
• The number of decimal digits it has is: 8
• The sum of 12018890's digits is 29
• More coming soon!