Number 68

A page of the Numeropedia - the Special Encyclopedia of Numbers

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[Chemistry]  The atomic number of Erbium (Er). An element in the Lanthanide series: Lanthanum (57) to Lutetium (71).

 

[EECS]  68(W, KW or MW) is one of standard numerical values for resistors (of tolerance class 5%). 68pF (picofarads) and 68mF (microfarads) are two of standard numerical values for capacitors.

 

[Math.]  687 = 6,722,988,818,432 =  (6+7+2+2+9+8+8+8+1+8+4+3+2)7.

 

[Math.]  3468 = 682–342 = (68+34)×34, where 68 = 34×2.

 

[Math.]  34×86 = 2,924 = 43×68.

 

[Sport]  The height (inches) off the ground of the bull’s-eye on a dartboard (= 5 feet 8 inches = 172.72 cm, centimeters).

 

[World]  The ISO country code for Bolivia is 068 (ISO-3166)

 

64, 66, 67, 68 & 69

[Math.]

66×64 = 4224

66×67 = 4422

66×68 = 4488

66×69 = 4554

66×74 = 4884

 

666×661 = 440,226

666×666 = 443,556

666×669 = 445,554

666×672 = 447,552

666×663 = 441,558

666×667 = 444,222

666×670 = 446,220

666×674 = 448,884

666×664 = 442,224

666×668 = 444,888

666×671 = 446,886

666×675 = 449,550

… (generalizable pattern) …