12136821

Names of 12136821

• Cardinal: 12136821 can be written as Twelve million, one hundred thirty-six thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.2136821 × 10⁷

Factors of 12136821

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5451

Divisors of 12136821

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 887 2661 4561 13683 4045607 12136821
• Sum of all divisors σ(n): 16204224
• Sum of proper divisors (its aliquot sum) s(n): 4067403
• 12136821 is a deficient number, because the sum of its proper divisors (4067403) is less than itself. Its deficiency is 8069418

Bases of 12136821

• Binary: 101110010011000101110101₂
• Hexadecimal: 0xB93175
• Base-36: 784TX

Squares and roots of 12136821

• 12136821 squared (12136821²) is 147302423986041
• 12136821 cubed (12136821³) is 1787783152784686115661
• The square root of 12136821 is 3483.7940524663
• The cube root of 12136821 is 229.8096787245

Scales and comparisons

• 12,136,821 seconds is equal to 20 weeks, 11 hours, 20 minutes, 21 seconds.
• To count from 1 to 12,136,821 would take you about thirty 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 12136821 cubic inches would be around 19.2 feet tall.

Recreational maths with 12136821

• 12136821 backwards is 12863121
• The number of decimal digits it has is: 8
• The sum of 12136821's digits is 24
• More coming soon!