12918545208320

Names of 12918545208320

• Cardinal: 12918545208320 can be written as Twelve trillion, nine hundred eighteen billion, five hundred forty-five million, two hundred eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.291854520832 × 10¹³

Factors of 12918545208320

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 50238

Divisors of 12918545208320

• Number of divisors d(n): 66
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2560 5120 50231 100462 200924 251155 401848 502310 803696 1004620 1607392 2009240 3214784 4018480 6429568 8036960 12859136 16073920 25718272 32147840 51436544 64295680 128591360 257182720 2523153361 5046306722 10092613444 12615766805 20185226888 25231533610 40370453776 50463067220 80740907552 100926134440 161481815104 201852268880 322963630208 403704537760 645927260416 807409075520 1291854520832 1614818151040 2583709041664 3229636302080 6459272604160 12918545208320
• Sum of all divisors σ(n): 30989986529226
• Sum of proper divisors (its aliquot sum) s(n): 18071441320906
• 12918545208320 is an abundant number, because the sum of its proper divisors (18071441320906) is greater than itself. Its abundance is 5152896112586

Bases of 12918545208320

• Binary: 10111011111111010101010011000101010000000000₂
• Hexadecimal: 0xBBFD54C5400
• Base-36: 4KUP49Q0W

Squares and roots of 12918545208320

• 12918545208320 squared (12918545208320²) is 166888810299407632197222400
• 12918545208320 cubed (12918545208320³) is 2155960640615637931455864388733370368000
• The square root of 12918545208320 is 3594237.7784893421
• The cube root of 12918545208320 is 23464.1343395749

Scales and comparisons

• 12,918,545,208,320 seconds is equal to 410,769 years, 40 weeks, 3 days, 4 hours, 5 minutes, 20 seconds.
• To count from 1 to 12,918,545,208,320 would take you about one million, twenty-six thousand, nine hundred twenty-four 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 12918545208320 cubic inches would be around 1955.3 feet tall.

Recreational maths with 12918545208320

• 12918545208320 backwards is 02380254581921
• The number of decimal digits it has is: 14
• The sum of 12918545208320's digits is 50
• More coming soon!