1213337890

Names of 1213337890

• Cardinal: 1213337890 can be written as One billion, two hundred thirteen million, three hundred thirty-seven thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.21333789 × 10⁹

Factors of 1213337890

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1363397

Divisors of 1213337890

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 5 10 89 178 445 890 1363301 2726602 6816505 13633010 121333789 242667578 606668945 1213337890
• Sum of all divisors σ(n): 2208549240
• Sum of proper divisors (its aliquot sum) s(n): 995211350
• 1213337890 is a deficient number, because the sum of its proper divisors (995211350) is less than itself. Its deficiency is 218126540

Bases of 1213337890

• Binary: 1001000010100100001000100100010₂
• Hexadecimal: 0x48521122
• Base-36: K2E1IA

Squares and roots of 1213337890

• 1213337890 squared (1213337890²) is 1472188835309652100
• 1213337890 cubed (1213337890³) is 1786262495116170775648069000
• The square root of 1213337890 is 34833.0000143543
• The cube root of 1213337890 is 1066.5811892225

Scales and comparisons

• 1,213,337,890 seconds is equal to 38 years, 30 weeks, 1 day, 6 hours, 18 minutes, 10 seconds.
• To count from 1 to 1,213,337,890 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 1213337890 cubic inches would be around 88.9 feet tall.

Recreational maths with 1213337890

• 1213337890 backwards is 0987333121
• The number of decimal digits it has is: 10
• The sum of 1213337890's digits is 37
• More coming soon!