20868121

Names of 20868121

• Cardinal: 20868121 can be written as Twenty million, eight hundred sixty-eight thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 2.0868121 × 10⁷

Factors of 20868121

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 20868121

Divisors of 20868121

• Number of divisors d(n): 2
• Complete list of divisors:
  1 20868121
• Sum of all divisors σ(n): 20868122
• Sum of proper divisors (its aliquot sum) s(n): 1
• 20868121 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 20868120

Bases of 20868121

• Binary: 1001111100110110000011001₂
• Hexadecimal: 0x13E6C19
• Base-36: CF9Y1

Squares and roots of 20868121

• 20868121 squared (20868121²) is 435478474070641
• 20868121 cubed (20868121³) is 9087617489801498935561
• The square root of 20868121 is 4568.1638543293
• The cube root of 20868121 is 275.3136740329

Scales and comparisons

• 20,868,121 seconds is equal to 34 weeks, 3 days, 12 hours, 42 minutes, 1 second.
• To count from 1 to 20,868,121 would take you about fifty-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 20868121 cubic inches would be around 22.9 feet tall.

Recreational maths with 20868121

• 20868121 backwards is 12186802
• The number of decimal digits it has is: 8
• The sum of 20868121's digits is 28
• More coming soon!