3,403

[Math.]  A triangular number (sum of all integers from 1 to 82): 3403 = 1+2+…+81+82.

 

3,412 

[Sport]  One of soccer’s possible lineup tactics formations: 3-4-3 (3 defenders, 4 midfielders and 3 forwards). A slightly modified forwards line makes: 3-4-2-1 (1 striker) or 3-4-1-2 (2 strikers).

 

3,412 & 3,414

[Science]  1 Btu (British thermal unit, European Union’s definition) = 252 calories = 778.17 ft×lb = 1055.056 J (joules) = 3412 Kwh (Kilowatt-Hour). Btu, the amount of heat required for raising the temperature of 1 lb of water by 1 oF (Fahrenheit) is 1,054.80 J (joules), in the U.S. Thermodynamically, 1 Btu = 1054.35 J = 3414 Kwh.

 

3,413

[Math.]  A prime number.  3413 = 11+22+33+44+55.

 

3,420

[Math.]  Sum (in degrees) of all internal angles of a 21-side polygon.

 

3,421

[Sport]  One of soccer’s possible lineup tactics formations: 3-4-3 (3 defenders, 4 midfielders and 3 forwards). A slightly modified forwards line makes: 3-4-2-1 (1 striker) or 3-4-1-2 (2 strikers).

 

3,435

[Math.]  3435 = 33+44+33+55.

 

3,447

[Math.]  Two multiples of number 3447, 3447×2 = 6894 and 3447×5 = 17,235, use each of 9 digits 1-9 once.

 

3,456

[Zip]  A special U.S. Postal Zip Code: Marlow, New Hampshire 03456.

 

3,468

[Math.]  3,468 = 682–342 = (34+68)×34, where 68 = 34×2.

 

3,472

[Math.]  9,523,696 = 2743×3472 = 1456×6541.      

 

3,486

[Math.]  A triangular number (sum of all integers from 1 to 83): 3486 = 1+2+…+82+83.

 

3,489

[Math.]  34892 = 12,173,121.