1209378221

Names of 1209378221

• Cardinal: 1209378221 can be written as One billion, two hundred nine million, three hundred seventy-eight thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.209378221 × 10⁹

Factors of 1209378221

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 14671

Divisors of 1209378221

• Number of divisors d(n): 8
• Complete list of divisors:
  1 53 1777 12841 94181 680573 22818457 1209378221
• Sum of all divisors σ(n): 1232986104
• Sum of proper divisors (its aliquot sum) s(n): 23607883
• 1209378221 is a deficient number, because the sum of its proper divisors (23607883) is less than itself. Its deficiency is 1185770338

Bases of 1209378221

• Binary: 1001000000101011010010110101101₂
• Hexadecimal: 0x4815A5AD
• Base-36: K0167H

Squares and roots of 1209378221

• 1209378221 squared (1209378221²) is 1462595681429124841
• 1209378221 cubed (1209378221³) is 1768831363249037737795487861
• The square root of 1209378221 is 34776.1156686597
• The cube root of 1209378221 is 1065.4196795721

Scales and comparisons

• 1,209,378,221 seconds is equal to 38 years, 23 weeks, 4 days, 10 hours, 23 minutes, 41 seconds.
• To count from 1 to 1,209,378,221 would take you about seventy-six 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 1209378221 cubic inches would be around 88.8 feet tall.

Recreational maths with 1209378221

• 1209378221 backwards is 1228739021
• The number of decimal digits it has is: 10
• The sum of 1209378221's digits is 35
• More coming soon!