20842020

Names of 20842020

• Cardinal: 20842020 can be written as Twenty million, eight hundred forty-two thousand and twenty.

Scientific notation

• Scientific notation: 2.084202 × 10⁷

Factors of 20842020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1400

Divisors of 20842020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 89 90 178 180 267 356 445 534 801 890 1068 1301 1335 1602 1780 2602 2670 3204 3903 4005 5204 5340 6505 7806 8010 11709 13010 15612 16020 19515 23418 26020 39030 46836 58545 78060 115789 117090 231578 234180 347367 463156 578945 694734 1042101 1157890 1389468 1736835 2084202 2315780 3473670 4168404 5210505 6947340 10421010 20842020
• Sum of all divisors σ(n): 63980280
• Sum of proper divisors (its aliquot sum) s(n): 43138260
• 20842020 is an abundant number, because the sum of its proper divisors (43138260) is greater than itself. Its abundance is 22296240

Bases of 20842020

• Binary: 1001111100000011000100100₂
• Hexadecimal: 0x13E0624
• Base-36: CEPT0

Squares and roots of 20842020

• 20842020 squared (20842020²) is 434389797680400
• 20842020 cubed (20842020³) is 9053560851050850408000
• The square root of 20842020 is 4565.3061233613
• The cube root of 20842020 is 275.1988424157

Scales and comparisons

• 20,842,020 seconds is equal to 34 weeks, 3 days, 5 hours, 27 minutes.
• To count from 1 to 20,842,020 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 20842020 cubic inches would be around 22.9 feet tall.

Recreational maths with 20842020

• 20842020 backwards is 02024802
• 20842020 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20842020's digits is 18
• More coming soon!