1221908241

Names of 1221908241

• Cardinal: 1221908241 can be written as One billion, two hundred twenty-one million, nine hundred eight thousand, two hundred forty-one.

Scientific notation

• Scientific notation: 1.221908241 × 10⁹

Factors of 1221908241

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 407302750

Divisors of 1221908241

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 407302747 1221908241
• Sum of all divisors σ(n): 1629210992
• Sum of proper divisors (its aliquot sum) s(n): 407302751
• 1221908241 is a deficient number, because the sum of its proper divisors (407302751) is less than itself. Its deficiency is 814605490

Bases of 1221908241

• Binary: 1001000110101001101011100010001₂
• Hexadecimal: 0x48D4D711
• Base-36: K7HQFL

Squares and roots of 1221908241

• 1221908241 squared (1221908241²) is 1493059749423714081
• 1221908241 cubed (1221908241³) is 1824382012126231236401641521
• The square root of 1221908241 is 34955.8041103331
• The cube root of 1221908241 is 1069.0865471075

Scales and comparisons

• 1,221,908,241 seconds is equal to 38 years, 44 weeks, 2 days, 10 hours, 57 minutes, 21 seconds.
• To count from 1 to 1,221,908,241 would take you about seventy-seven 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 1221908241 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221908241

• 1221908241 backwards is 1428091221
• The number of decimal digits it has is: 10
• The sum of 1221908241's digits is 30
• More coming soon!