Number 22


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[Biology]  The number of bones of a human skull.

 

[Calendar]  September 22 or 23 is the Autumn Equinox day: Fall begins; day and night are equal lengths.

December 21 or 22 is Winter Solstice day : Winter begins; the Sun is farthest south of the Equator.

 

[Chemistry]  The atomic number of Titanium (Ti).

 

[EECS]  22(W, KW or MW) is one of standard numerical values for resistors (of tolerance class 5%).  22pF (picofarads) and 22mF (microfarads) are two of standard numerical values for capacitors.

 

[Gov.]  The number of stars on the official seal of the Homeland Security Department, which became the newest (15th) U.S. President’s Cabinet-level Departments on 25 November 2002, representing its 22 agencies.

 

[History]  Alabama became the 22nd state of the U.S. on 14 December 1819.

 

[History]  The 22nd and 24th U.S. President: Grover Cleveland (Democrat, New Jersey, 1885-1889) and (1893-1897).

 

[History]  The classical art of making Japanese swords required the process of folding, welding and forging 22 times, i.e. to have 222 = 4,194,304 layers of steel to make the sword blade both hard and flexible.

 

[Language]  The number of letters in the Italian alphabet: A, B, C, D, E, F, G, H, I, J, L, M, N, O, P, Q, R, S, T, U, V and Z. (K, W, X and Y are only in foreign loan words).

 

[Language]  The number of letters in the Hebrew alphabet: aleph, beyt, gimel, dalet, hey, vav, zayin, hhet, tet, yud, kaph, lamed, eme, nun, samech, ayin, pey, tsadey, quph, resh, shin/sin and tav.

 

[Language]  The number of letters in the longest word in the Spanish language: Superextraordinarisimo, whose meaning is “extraordinary”.

 

[Language]  “Catch 22” is a no win situation. It is the name of a book of Joseph Heller.

 

[Math.]  22 = 14+23+32+41.

 

[Math.] 

112 = 121 = 23+42+56 = 65+24+32

224 = 234,256 = (2+3+4+2+5+6)4.

 

226 = 113,379,904 = (11+3–3+7–9+9–0+4)6

227 = 2,494,357,888 =  (24–9+4–3+5–7+8–8+8)7.

 

[Math.]  All the cubic powers 23 = 8, 223 = 10,648, 2223 = 10,941,048, 22223 = 10,970,645,048, 22,2223 = 10,973,607,685,048 and 222,2223 = 10,973,903,978,085,048 do not use digits 2.

 

[Math.]

121 = 112

121×(1+2+1) = 484 = 222

12,321×(1+2+3+2+1) = 110,889 = 3332

1,234,321×(1+2+3+4+3+2+1) = 19,749,136 = 4,4442

123,454,321×(1+2+3+4+5+4+3+2+1) = 3,086,358,025 = 55,5552

12,345,654,321×(1+2+3+4+5+6+5+4+3+2+1) = 444,443,555,556 = 666,6662

1,234,567,654,321×(1+2+3+4+5+6+7+6+5+4+3+2+1) =

= 60,493,815,061,729 = 7,777,7772

123,456,787,654,321×(1+2+3+4+5+6+7+8+7+6+5+4+3+2+1) =

= 7,901,234,409,876,544 = 88,888,8882

12,345,678,987,654,321×(1+2+3+4+5+6+7+8+9 +8+7+6+5+4+3+2+1) =

= 999,999,998,000,000,001 = 999,999,9992.

 

[Movie]  The number of stars surrounding the mountain on the Paramount Pictures logo.

 

[Movie]  Name of TV show/series or movie: “Bond 22”.

 

[Phone]  The number to key in text messaging on telephone keypad for letter B.

 

[Phone]  The last 2 digits of an NANPA/U.S. area code cannot be the same, i.e. cannot be: 11, 22, 33, 44, 55, 66, 77, 88 or 99. (NANPA: North American Numbering Plan Administration).

 

[Sport]  The preferred ice tempature for an ice hockey rink is 16 oF. For a figure skating ice rink, it is preferably at 22 oF.

 

[Sport]  The 3-point line in NBA is 22 feet at the corners, arcing to a maximum 23 feet 9 inches.

 

[Sport]  The loft angle of iron golf clubs is increased by 4o from the vertical, from 2-iron to 9-iron; for pitching wedge is 52o and sand wedge 58o.

2-iron: 18o         3-iron: 22o     4-iron: 26o      5-iron: 30o

6-iron: 34o         7-iron: 38o     8-iron: 42o      9-iron: 46o.

 

[Trivia]  The Taj Mahal was constructed in about 22 years by 20,000 men.

 

[Zip]  The values of the US non-denominated first-class postage stamps and later values, for the first ounce, starting 14 September 1975 at 10¢ to 44¢, in May 2009.  

Series

 *

A

B

C

D

E

F

G

H

 *

 *

 *

 *

 *

Value (¢)

10

13

15

18

20

22

25

29

32

33

34

37

39

41

42

44

 

[Science]  The molar volume (ideal) at STP (standard conditions of temperature and pressure: 0 oC and 1 atm): 22.414 l/mol (liters/mole) = 359.04 ft3/lb-mol.

 

[Math.]  The number ep = 23.14069263… is transcendental by Gelfand-Schneider theorem, while we still do not know if pe = 22.459157… is a rational number.

 

[Tech.]  The popular Alkaline-Manganese battery voltages for household electronic devices: 1.5V – 3V – 4.5V – 6V – 9V, available in popular sizes: AAA, AA, C, D, G and N. The Carbon-Zinc batteries have additional values: 12V – 22.5V – 45V and 90V. Other values: PP3 – 1.2V – 3.6V – 4.8V – 8.4V for Ni-Cad rechargeables.

 

22 & 21 and 24 & 23

[History]  The 22nd and 24th U.S. President: Stephen Grover Cleveland (Democrat, New Jersey, 1885-1889 and 1893-1897).

His Vice President of the 22nd Presidency, Thomas Andrews Hendricks (Indiana, 1885), was the 21st U.S. Vice President.  There was no Vice President in the period 1885-1889.  His Vice President of the 24th Presidency, Adlai Ewing Stevenson (Illinois, 1893-1897), was the 23rd U.S. Vice President.

 

22 & 23

[History]  The 23rd U.S. President: Benjamin Harrison (Republican, Ohio, 1889-1893).

His Vice President, Levi Parsons Morton (New York), was the 22nd U.S. Vice President.