12521989

Names of 12521989

• Cardinal: 12521989 can be written as Twelve million, five hundred twenty-one thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 1.2521989 × 10⁷

Factors of 12521989

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 12521989

Divisors of 12521989

• Number of divisors d(n): 2
• Complete list of divisors:
  1 12521989
• Sum of all divisors σ(n): 12521990
• Sum of proper divisors (its aliquot sum) s(n): 1
• 12521989 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 12521988

Bases of 12521989

• Binary: 101111110001001000000101₂
• Hexadecimal: 0xBF1205
• Base-36: 7GE11

Squares and roots of 12521989

• 12521989 squared (12521989²) is 156800208516121
• 12521989 cubed (12521989³) is 1963450486236573484669
• The square root of 12521989 is 3538.6422537465
• The cube root of 12521989 is 232.2154471579

Scales and comparisons

• 12,521,989 seconds is equal to 20 weeks, 4 days, 22 hours, 19 minutes, 49 seconds.
• To count from 1 to 12,521,989 would take you about thirty-one 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 12521989 cubic inches would be around 19.4 feet tall.

Recreational maths with 12521989

• 12521989 backwards is 98912521
• The number of decimal digits it has is: 8
• The sum of 12521989's digits is 37
• More coming soon!