8124400221

Names of 8124400221

• Cardinal: 8124400221 can be written as Eight billion, one hundred twenty-four million, four hundred thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 8.124400221 × 10⁹

Factors of 8124400221

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 386876211

Divisors of 8124400221

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 7 21 386876201 1160628603 2708133407 8124400221
• Sum of all divisors σ(n): 12380038464
• Sum of proper divisors (its aliquot sum) s(n): 4255638243
• 8124400221 is a deficient number, because the sum of its proper divisors (4255638243) is less than itself. Its deficiency is 3868761978

Bases of 8124400221

• Binary: 111100100010000001000001001011101₂
• Hexadecimal: 0x1E440825D
• Base-36: 3QD23BX

Squares and roots of 8124400221

• 8124400221 squared (8124400221²) is 66005878950984848841
• 8124400221 cubed (8124400221³) is 536258177536680554091471993861
• The square root of 8124400221 is 90135.4548499091
• The cube root of 8124400221 is 2010.3134104491

Scales and comparisons

• 8,124,400,221 seconds is equal to 258 years, 17 weeks, 1 day, 9 hours, 50 minutes, 21 seconds.
• To count from 1 to 8,124,400,221 would take you about five hundred sixteen 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 8124400221 cubic inches would be around 167.5 feet tall.

Recreational maths with 8124400221

• 8124400221 backwards is 1220044218
• The number of decimal digits it has is: 10
• The sum of 8124400221's digits is 24
• More coming soon!