20212800

Names of 20212800

• Cardinal: 20212800 can be written as Twenty million, two hundred twelve thousand, eight hundred.

Scientific notation

• Scientific notation: 2.02128 × 10⁷

Factors of 20212800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4221

Divisors of 20212800

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4211 4800 8422 12633 16844 21055 25266 33688 42110 50532 63165 67376 84220 101064 105275 126330 134752 168440 202128 210550 252660 269504 315825 336880 404256 421100 505320 631650 673760 808512 842200 1010640 1263300 1347520 1684400 2021280 2526600 3368800 4042560 5053200 6737600 10106400 20212800
• Sum of all divisors σ(n): 66330576
• Sum of proper divisors (its aliquot sum) s(n): 46117776
• 20212800 is an abundant number, because the sum of its proper divisors (46117776) is greater than itself. Its abundance is 25904976

Bases of 20212800

• Binary: 1001101000110110001000000₂
• Hexadecimal: 0x1346C40
• Base-36: C18AO

Squares and roots of 20212800

• 20212800 squared (20212800²) is 408557283840000
• 20212800 cubed (20212800³) is 8258086666801152000000
• The square root of 20212800 is 4495.8647666495
• The cube root of 20212800 is 272.4010807247

Scales and comparisons

• 20,212,800 seconds is equal to 33 weeks, 2 days, 22 hours, 40 minutes.
• To count from 1 to 20,212,800 would take you about fifty 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 20212800 cubic inches would be around 22.7 feet tall.

Recreational maths with 20212800

• 20212800 backwards is 00821202
• 20212800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20212800's digits is 15
• More coming soon!