120 (separate page)      

 

121 (separate page)     

 

123 (separate page)

 

122

[Math.]  25,986 = 213×122 and backward 312×221 = 68,952.

 

[Math.]  Reversible numbers and their squares: 1222 = 14,884 and 2212 = 48,841.

 

[Phone]  The emergency telephone number dialing within Austria.

 

[Trivia]  The oldest person ever whose age was authenticated, according to Guinness, was Jeanne Louise Calment, who lived to 122 years and 164 days. She was born in France on 21 February 1875, and died at a nursing home in Arles in southern France on 4 August 1997.

 

124

[Phone]  The emergency (ambulance) telephone number dialing within Bosnia-Herzegovina.

 

[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

 

 

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

 

125

[Math.]  The smallest 3-digit cube number = 53.

 

[Math.]  A power of 10 that can be represented as the product of 2 numbers, which have no digit 0: 103 = 1,000 = 23×53 = 8×125.

 

[Math.]  Two cube numbers using the same digits: 53 = 125 and 83 = 512.

Also: 353 = 42875 and 383 = 54872.

 

[Math.]  Its odd powers end with 125. Its even powers end with 625.

 

[Tech.]  A frequency used by proximity card technology: 125 kHz.

A frequency used by contactless smart card technology: 13.56 MHz.

 

126

[Math.]  1264 = 252,047,376 = (252+04+73+76)4.

 

[Science]  One of seven magic numbers in nuclear physics: 2, 8, 20, 28, 50, 82 and 126. They are the numbers of nucleons such that they are arranged into complete shells within the atomic nucleus.

 

127

[Math.]  The 4th Mersenne prime number: 27–1. It is the (2nd) double Mersenne number. A Mersenne exponent: the number 2127–1 is the 12th Mersenne prime number. Hence 2127–1 is the (4th) double Mersenne number.

 

[Sport ]  The distance (127 feet 33/8 inches = 127.28125 feet) between 2nd base to the home plate in professional baseball.

 

128

[Math.]  1283 = 1253+503+253+153+33 = 2,097,152.

 

[Math.]  128 = 43×21 = 53+31.

 

[Math.]  Five square numbers using the same digits: 1282 = 16,384, 1782 = 31,684, 1912 = 36,481, 1962 = 38,416 and 2092 = 43,681.

 

[Math.]  A power of 10 that can be represented as the product of 2 numbers, which have no digit 0: 107 = 10,000,000 = 27×57 = 128×78,125.

 

[Measure]  1 cord (cd) of firewood = 128 cubic feet (exactly).

 

[Measure]  The number of fluid ounces in a gallon & of fluid drams in a pint.

U.S. customary units for liquid measures: 1 gallon = 4 quarts = 8 pints = 32 gills = 128 fluid ounces = 1024 fluid drams = 61440 minims = 3.785411784 liters = 231 inch3.

U.S. customary units for kitchen measurements: ½ pints = 1 cup = 8 fluid ounces = 16 tablespoons = 48 teaspoons = 2880 drops = 236.588 ml.

 

[Tech.]  Code 128 is name of a kind of compact bar code, supporting the lower 128 ASCII characters.

 

[Tech.]  The AES (Advanced Encryption Standard) algorithm uses 128, 192- and 256-bit keys to encrypt/decrypt 128-bit plaintext/ciphertext in banking funds transfer security, replacing the DES (Data Encryption Algorithm), after the year 2000.

 

129

[Math.]  Three square numbers using the same digits: 1082 = 11664, 1292 = 16641 and 2042 = 41616.

   

120-129

[Library]  Numbers 100-199 are the first 3 digits in Dewey Decimal Classification System call numbers for library books in Philosophy, Psychology and Ethics… Numbers 120-129 are for books in Epistemology and Humankind.

 

100-199

[Education] The numbers commonly assigned for upper level undergraduate (last 2 years, junior and senior) courses in most U.S. universities and colleges.