13815685720

Names of 13815685720

• Cardinal: 13815685720 can be written as Thirteen billion, eight hundred fifteen million, six hundred eighty-five thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.381568572 × 10¹⁰

Factors of 13815685720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5844

Divisors of 13815685720

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1879 1880 3758 3911 7516 7822 9395 15032 15644 18790 19555 31288 37580 39110 75160 78220 88313 156440 176626 183817 353252 367634 441565 706504 735268 883130 919085 1470536 1766260 1838170 3532520 3676340 7348769 7352680 14697538 29395076 36743845 58790152 73487690 146975380 293950760 345392143 690784286 1381568572 1726960715 2763137144 3453921430 6907842860 13815685720
• Sum of all divisors σ(n): 31771699200
• Sum of proper divisors (its aliquot sum) s(n): 17956013480
• 13815685720 is an abundant number, because the sum of its proper divisors (17956013480) is greater than itself. Its abundance is 4140327760

Bases of 13815685720

• Binary: 1100110111011110101010001001011000₂
• Hexadecimal: 0x3377AA258
• Base-36: 6CHI3BS

Squares and roots of 13815685720

• 13815685720 squared (13815685720²) is 190873171913811918400
• 13815685720 cubed (13815685720³) is 2637043755540756391804685248000
• The square root of 13815685720 is 117540.1451419899
• The cube root of 13815685720 is 2399.5187530443

Scales and comparisons

• 13,815,685,720 seconds is equal to 439 years, 15 weeks, 2 days, 18 hours, 28 minutes, 40 seconds.
• To count from 1 to 13,815,685,720 would take you about eight hundred seventy-eight 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 13815685720 cubic inches would be around 200 feet tall.

Recreational maths with 13815685720

• 13815685720 backwards is 02758651831
• The number of decimal digits it has is: 11
• The sum of 13815685720's digits is 46
• More coming soon!