21083090

Names of 21083090

• Cardinal: 21083090 can be written as Twenty-one million, eighty-three thousand and ninety.

Scientific notation

• Scientific notation: 2.108309 × 10⁷

Factors of 21083090

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1226

Divisors of 21083090

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 7 10 14 35 70 349 698 863 1726 1745 2443 3490 4315 4886 6041 8630 12082 12215 24430 30205 60410 301187 602374 1505935 2108309 3011870 4216618 10541545 21083090
• Sum of all divisors σ(n): 43545600
• Sum of proper divisors (its aliquot sum) s(n): 22462510
• 21083090 is an abundant number, because the sum of its proper divisors (22462510) is greater than itself. Its abundance is 1379420

Bases of 21083090

• Binary: 1010000011011001111010010₂
• Hexadecimal: 0x141B3D2
• Base-36: CJVTE

Squares and roots of 21083090

• 21083090 squared (21083090²) is 444496683948100
• 21083090 cubed (21083090³) is 9371363592379347629000
• The square root of 21083090 is 4591.6326072541
• The cube root of 21083090 is 276.2558102283

Scales and comparisons

• 21,083,090 seconds is equal to 34 weeks, 6 days, 24 minutes, 50 seconds.
• To count from 1 to 21,083,090 would take you about two 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 21083090 cubic inches would be around 23 feet tall.

Recreational maths with 21083090

• 21083090 backwards is 09038012
• The number of decimal digits it has is: 8
• The sum of 21083090's digits is 23
• More coming soon!