72224

Names of 72224

• Cardinal: 72224 can be written as Seventy-two thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 7.2224 × 10⁴

Factors of 72224

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 100

Divisors of 72224

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 8 16 32 37 61 74 122 148 244 296 488 592 976 1184 1952 2257 4514 9028 18056 36112 72224
• Sum of all divisors σ(n): 148428
• Sum of proper divisors (its aliquot sum) s(n): 76204
• 72224 is an abundant number, because the sum of its proper divisors (76204) is greater than itself. Its abundance is 3980

Bases of 72224

• Binary: 10001101000100000₂
• Hexadecimal: 0x11A20
• Base-36: 1JQ8

Squares and roots of 72224

• 72224 squared (72224²) is 5216306176
• 72224 cubed (72224³) is 376742497255424
• The square root of 72224 is 268.7452325159
• The cube root of 72224 is 41.6447742771

Scales and comparisons

• 72,224 seconds is equal to 20 hours, 3 minutes, 44 seconds.
• To count from 1 to 72,224 would take you about twenty hours.

  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 72224 cubic inches would be around 3.5 feet tall.

Recreational maths with 72224

• 72224 backwards is 42227
• The number of decimal digits it has is: 5
• The sum of 72224's digits is 17
• More coming soon!