13378816815

Names of 13378816815

• Cardinal: 13378816815 can be written as Thirteen billion, three hundred seventy-eight million, eight hundred sixteen thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 1.3378816815 × 10¹⁰

Factors of 13378816815

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 54360

Divisors of 13378816815

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 7 13 15 21 35 39 65 91 105 181 195 273 455 543 905 1267 1365 2353 2715 3801 6335 7059 11765 16471 19005 35295 49413 54151 82355 162453 247065 270755 379057 703963 812265 1137171 1895285 2111889 3519815 4927741 5685855 9801331 10559445 14783223 24638705 29403993 49006655 68609317 73916115 127417303 147019965 205827951 343046585 382251909 637086515 891921121 1029139755 1911259545 2675763363 4459605605 13378816815
• Sum of all divisors σ(n): 26492024832
• Sum of proper divisors (its aliquot sum) s(n): 13113208017
• 13378816815 is a deficient number, because the sum of its proper divisors (13113208017) is less than itself. Its deficiency is 265608798

Bases of 13378816815

• Binary: 1100011101011100001000101100101111₂
• Hexadecimal: 0x31D708B2F
• Base-36: 659EH4F

Squares and roots of 13378816815

• 13378816815 squared (13378816815²) is 178992739369326744225
• 13378816815 cubed (13378816815³) is 2394711071237261140866634143375
• The square root of 13378816815 is 115666.8354153429
• The cube root of 13378816815 is 2373.9554743503

Scales and comparisons

• 13,378,816,815 seconds is equal to 425 years, 21 weeks, 10 hours, 15 seconds.
• To count from 1 to 13,378,816,815 would take you about eight hundred fifty 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 13378816815 cubic inches would be around 197.8 feet tall.

Recreational maths with 13378816815

• 13378816815 backwards is 51861887331
• The number of decimal digits it has is: 11
• The sum of 13378816815's digits is 51
• More coming soon!