1313921761

Names of 1313921761

• Cardinal: 1313921761 can be written as One billion, three hundred thirteen million, nine hundred twenty-one thousand, seven hundred sixty-one.

Scientific notation

• Scientific notation: 1.313921761 × 10⁹

Factors of 1313921761

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 21539762

Divisors of 1313921761

• Number of divisors d(n): 4
• Complete list of divisors:
  1 61 21539701 1313921761
• Sum of all divisors σ(n): 1335461524
• Sum of proper divisors (its aliquot sum) s(n): 21539763
• 1313921761 is a deficient number, because the sum of its proper divisors (21539763) is less than itself. Its deficiency is 1292381998

Bases of 1313921761

• Binary: 1001110010100001101101011100001₂
• Hexadecimal: 0x4E50DAE1
• Base-36: LQ9WIP

Squares and roots of 1313921761

• 1313921761 squared (1313921761²) is 1726390394029341121
• 1313921761 cubed (1313921761³) is 2268341906696515771374034081
• The square root of 1313921761 is 36248.0587204335
• The cube root of 1313921761 is 1095.2749838633

Scales and comparisons

• 1,313,921,761 seconds is equal to 41 years, 40 weeks, 3 days, 10 hours, 16 minutes, 1 second.
• To count from 1 to 1,313,921,761 would take you about eighty-three 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 1313921761 cubic inches would be around 91.3 feet tall.

Recreational maths with 1313921761

• 1313921761 backwards is 1671293131
• The number of decimal digits it has is: 10
• The sum of 1313921761's digits is 34
• More coming soon!