Numbers 240-249

A page of the Numeropedia - the Special Encyclopedia of Numbers

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240

[EECS]   240(W, KW or MW) is one of standard numerical values for resistors (of tolerance class 5%). 240pF (picofarads) is one of standard numerical values for capacitors.

[Gov.]   A U.S. government employee can carry at most 240 hours of annual leave over the next leave year.

[Math.]   sin(210o) = sin(330o) = cos(120o) = cos(240o) = –0.5

sin(240o) = sin(300o) = cos(150o) = cos(210o) = –31/2/2.

tan(30o) = tan(210o) = cot(60o) = cos(240o) = 31/2/3.

tan(60o) = tan(240o) = cot(30o) = cos(210o) = 31/2.

[Measure]   The number of pennyweights in a troy pound.

Units for precious metals weight measures: 1 troy pound = 12 troy ounces = 240 pennyweights = 5760 grains = 373 g (grams).

[Phone]   International telephone dialing code for Equatorial Guinea.

[Tech.]   The standard voltage of the A.C. electrical power in the U.S. is 240 volts or 120 volts. (A.C. = alternating current).

[Tech.]   Volvo’s numbered series: 140 (142, 144, 145), 164, 240 (242, 244, 245), 260 (262, 264, 265), 340 (343, 345), 360, 440, 460, 480, 740, 760, 780, 850, 940 and 960. Digit 0 is replaced by the number of doors.

[Tech.]  Automobile Tire’s Speed Rating

 Tire Rating L M N P Q R S Max. Speed (mph) Max. Speed (kph) 75 120 81 130 87 140 93 150 100 160 106 170 112 180 Tire Rating T U H V W Y Max. Speed (mph) Max. Speed (kph) 118 190 124 200 130 210 149 240 168 270 186 300

[Trivia]   The fish markets and groceries stores sell about 240 different kinds of fish and shellfishes.

241

[Math.]   A prime number.

[Phone]   International telephone dialing code for Gabon.

[Sport]   Total number of possible bowling games: 669×241 = 5,726,805,883,325,784,576.

242

[Calendar]   The number of leap years in the millennium 2001-3000 in the current Gregorian calendar.

[Phone]   International telephone dialing code for Republic of the Congo.

[Phone]   The telephone area code for Bahamas (within U.S./NANPA).

[World]   The ISO country code for the Fiji Islands. (ISO-3166)

243

[Math.]   1/243 = 0.004115226337448559670781893…, where pairs 00, 11, 22, 33 44 and 55 are separated by numbers 4, 5, 6, 7 and 8, respectively. (R. P. Feyman & R. Leighton, 1997).

[Phone]   International telephone dialing code for Democratic Republic of the Congo (Kinshasa, formerly known as Zaire).

244

[Math.]   13+33+63 = 244 and then 23+43+43 = 136.

[Phone]   International telephone dialing code for Angola.

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

245

[Math.]   Three square numbers using the same digits: 1602 = 25600, 2452 = 60025 and 2502 = 62500.

[Phone]   International telephone dialing code for Guinea-Bissau.

[Tech.]   Automobile tires used in the U.S. have tire section width of 145, 155, 165, 175, 185, 195, 205, 215, 225, 235, 245 or 255 (millimeters).

246

[Gov.]   French president Charles de Gaulle once mentioned on how to govern France as a nation having 246 varieties of cheese.

[Phone]   International telephone dialing code for Diego Garcia.

[Phone]   The telephone area code for Barbados (within U.S./NANPA).

[World]   The ISO country code for Finland. (ISO-3166)

247

[Math.]   Six square numbers using the same digits: 1302 = 16900, 1402 = 19600, 3102 = 96100, 1032 = 10609, 2472 = 61009 and 3012 = 90601.

[Phone]   International telephone dialing code for Ascension Island.

248

[Phone]   International telephone dialing code for Seychelles.

249

[Math.]   The number of 0’s that the factorial (1,000!) ends in:

249 =  [[1000/5]]+[[1000/52]]+[[1000/53]]+[[1000/54]], where [[x]] is the floor function of x, i.e. which is the largest integer less than x (or the integral part of x).

[Math.]   Its odd powers end with 249. Its even powers end with 001.

[Phone]   International telephone dialing code for Sudan.

240-249

[Library]  Numbers 200-299 are the first 3 digits in Dewey Decimal Classification System call numbers for library books in Religion and Theology. Numbers 240-249 are for books in Christian Moral and Theology.

200-299

[Education]   The numbers commonly assigned for graduate courses in most U.S. universities and colleges.