1225136390

Names of 1225136390

• Cardinal: 1225136390 can be written as One billion, two hundred twenty-five million, one hundred thirty-six thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.22513639 × 10⁹

Factors of 1225136390

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 122513646

Divisors of 1225136390

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 122513639 245027278 612568195 1225136390
• Sum of all divisors σ(n): 2205245520
• Sum of proper divisors (its aliquot sum) s(n): 980109130
• 1225136390 is a deficient number, because the sum of its proper divisors (980109130) is less than itself. Its deficiency is 245027260

Bases of 1225136390

• Binary: 1001001000001100001100100000110₂
• Hexadecimal: 0x49061906
• Base-36: K9EXAE

Squares and roots of 1225136390

• 1225136390 squared (1225136390²) is 1500959174102232100
• 1225136390 cubed (1225136390³) is 1838879704096990125936119000
• The square root of 1225136390 is 35001.9483743407
• The cube root of 1225136390 is 1070.0271894567

Scales and comparisons

• 1,225,136,390 seconds is equal to 38 years, 49 weeks, 4 days, 19 hours, 39 minutes, 50 seconds.
• To count from 1 to 1,225,136,390 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 1225136390 cubic inches would be around 89.2 feet tall.

Recreational maths with 1225136390

• 1225136390 backwards is 0936315221
• The number of decimal digits it has is: 10
• The sum of 1225136390's digits is 32
• More coming soon!