212821013

Names of 212821013

• Cardinal: 212821013 can be written as Two hundred twelve million, eight hundred twenty-one thousand and thirteen.

Scientific notation

• Scientific notation: 2.12821013 × 10⁸

Factors of 212821013

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 212821013

Divisors of 212821013

• Number of divisors d(n): 2
• Complete list of divisors:
  1 212821013
• Sum of all divisors σ(n): 212821014
• Sum of proper divisors (its aliquot sum) s(n): 1
• 212821013 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 212821012

Bases of 212821013

• Binary: 1100101011110110010000010101₂
• Hexadecimal: 0xCAF6415
• Base-36: 3IPHQT

Squares and roots of 212821013

• 212821013 squared (212821013²) is 45292783574346169
• 212821013 cubed (212821013³) is 9639256081882112499249197
• The square root of 212821013 is 14588.3862370037
• The cube root of 212821013 is 597.0419338929

Scales and comparisons

• 212,821,013 seconds is equal to 6 years, 39 weeks, 6 days, 4 hours, 56 minutes, 53 seconds.
• To count from 1 to 212,821,013 would take you about ten years!

  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 212821013 cubic inches would be around 49.8 feet tall.

Recreational maths with 212821013

• 212821013 backwards is 310128212
• The number of decimal digits it has is: 9
• The sum of 212821013's digits is 20
• More coming soon!