21349019

Names of 21349019

• Cardinal: 21349019 can be written as Twenty-one million, three hundred forty-nine thousand and nineteen.

Scientific notation

• Scientific notation: 2.1349019 × 10⁷

Factors of 21349019

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21349019

Divisors of 21349019

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21349019
• Sum of all divisors σ(n): 21349020
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21349019 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21349018

Bases of 21349019

• Binary: 1010001011100001010011011₂
• Hexadecimal: 0x145C29B
• Base-36: CPL0B

Squares and roots of 21349019

• 21349019 squared (21349019²) is 455780612262361
• 21349019 cubed (21349019³) is 9730468951020777973859
• The square root of 21349019 is 4620.4998647333
• The cube root of 21349019 is 277.4124670489

Scales and comparisons

• 21,349,019 seconds is equal to 35 weeks, 2 days, 2 hours, 16 minutes, 59 seconds.
• To count from 1 to 21,349,019 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 21349019 cubic inches would be around 23.1 feet tall.

Recreational maths with 21349019

• 21349019 backwards is 91094312
• The number of decimal digits it has is: 8
• The sum of 21349019's digits is 29
• More coming soon!