21368146

Names of 21368146

• Cardinal: 21368146 can be written as Twenty-one million, three hundred sixty-eight thousand, one hundred forty-six.

Scientific notation

• Scientific notation: 2.1368146 × 10⁷

Factors of 21368146

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10684075

Divisors of 21368146

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10684073 21368146
• Sum of all divisors σ(n): 32052222
• Sum of proper divisors (its aliquot sum) s(n): 10684076
• 21368146 is a deficient number, because the sum of its proper divisors (10684076) is less than itself. Its deficiency is 10684070

Bases of 21368146

• Binary: 1010001100000110101010010₂
• Hexadecimal: 0x1460D52
• Base-36: CPZRM

Squares and roots of 21368146

• 21368146 squared (21368146²) is 456597663477316
• 21368146 cubed (21368146³) is 9756645536442155976136
• The square root of 21368146 is 4622.5691990493
• The cube root of 21368146 is 277.4952887223

Scales and comparisons

• 21,368,146 seconds is equal to 35 weeks, 2 days, 7 hours, 35 minutes, 46 seconds.
• To count from 1 to 21,368,146 would take you about six days!

  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 21368146 cubic inches would be around 23.1 feet tall.

Recreational maths with 21368146

• 21368146 backwards is 64186312
• The number of decimal digits it has is: 8
• The sum of 21368146's digits is 31
• More coming soon!