30311221

Names of 30311221

• Cardinal: 30311221 can be written as Thirty million, three hundred eleven thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 3.0311221 × 10⁷

Factors of 30311221

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4331

Divisors of 30311221

• Number of divisors d(n): 8
• Complete list of divisors:
  1 17 463 3851 7871 65467 1783013 30311221
• Sum of all divisors σ(n): 32171904
• Sum of proper divisors (its aliquot sum) s(n): 1860683
• 30311221 is a deficient number, because the sum of its proper divisors (1860683) is less than itself. Its deficiency is 28450538

Bases of 30311221

• Binary: 1110011101000001100110101₂
• Hexadecimal: 0x1CE8335
• Base-36: I1OAD

Squares and roots of 30311221

• 30311221 squared (30311221²) is 918770118510841
• 30311221 cubed (30311221³) is 27849044110378292446861
• The square root of 30311221 is 5505.5627323645
• The cube root of 30311221 is 311.7940407365

Scales and comparisons

• 30,311,221 seconds is equal to 50 weeks, 19 hours, 47 minutes, 1 second.
• To count from 1 to 30,311,221 would take you about twenty-three 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 30311221 cubic inches would be around 26 feet tall.

Recreational maths with 30311221

• 30311221 backwards is 12211303
• The number of decimal digits it has is: 8
• The sum of 30311221's digits is 13
• More coming soon!