21143514

Names of 21143514

• Cardinal: 21143514 can be written as Twenty-one million, one hundred forty-three thousand, five hundred fourteen.

Scientific notation

• Scientific notation: 2.1143514 × 10⁷

Factors of 21143514

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 10770

Divisors of 21143514

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 7 14 21 42 47 94 141 282 329 658 987 1974 10711 21422 32133 64266 74977 149954 224931 449862 503417 1006834 1510251 3020502 3523919 7047838 10571757 21143514
• Sum of all divisors σ(n): 49360896
• Sum of proper divisors (its aliquot sum) s(n): 28217382
• 21143514 is an abundant number, because the sum of its proper divisors (28217382) is greater than itself. Its abundance is 7073868

Bases of 21143514

• Binary: 1010000101001111111011010₂
• Hexadecimal: 0x1429FDA
• Base-36: CL6FU

Squares and roots of 21143514

• 21143514 squared (21143514²) is 447048184268196
• 21143514 cubed (21143514³) is 9452169542749181880744
• The square root of 21143514 is 4598.2076943089
• The cube root of 21143514 is 276.5194742925

Scales and comparisons

• 21,143,514 seconds is equal to 34 weeks, 6 days, 17 hours, 11 minutes, 54 seconds.
• To count from 1 to 21,143,514 would take you about three 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 21143514 cubic inches would be around 23 feet tall.

Recreational maths with 21143514

• 21143514 backwards is 41534112
• 21143514 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21143514's digits is 21
• More coming soon!