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127 is the natural number following 126 and preceding 128.

#REDIRECT Numbers (120s)
Cardinal	One hundred [and] twenty-seven
Ordinal	127th
Factorization	prime number
Roman numeral	CXXVII
Binary	1111111
Hexadecimal	7F

1 In mathematics

One hundred twenty-seven is a Mersenne prime, 2⁷ - 1, and as such, in binary it is a repunit prime, a permutable prime and a palindromic prime. This also means it is the largest integer that can be represented by a signed byte. As a Mersenne prime, 127 is related to the perfect number 81288,128 is the natural number following 8,127 and preceding 8,129. It is most notable for being a perfect number, and one of the earliest numbers to be recognized as such. As a perfect number, it is tied to the Mersenne prime 127, 27 1, with 26 ( 27 1 ) yie. 127 is also a cuban primeA cuban prime is a prime number that is a solution to one of two different specific equations involving third powers of x and y''. The first of these equations is and the first few cuban primes from this equation are 7, 19, 37, 61, 127, 271, 331, 397, 547 of the form , .

127 is a centered hexagonal numberA centered hexagonal number or hex number is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in successive hexagonal layers. The centered hexagonal number for n is given by the fo.

It is the 7th Motzkin numberA Motzkin number for a given number n is the number of different ways of drawing non-intersecting chords on a circle between n points. The Motzkin numbers have very diverse applications in geometry, combinatorics and number theory. The first few Motzkin n.

It is a nice Friedman numberA Friedman number is an integer which in a given base is the result of an expression using its own digits in combination with any of the four basic arithmetic operators (+, ×, ÷) and sometimes exponentiation. For example, 347 is a Friedman number since 34 in base 10, since 127 = -1 + 2⁷, as well as binary since 1111111 = (1 + 1)¹¹¹ - 1 * 1.

2 In other fields

One hundred twenty-seven is also:

ASCIIASCII A merican S tandard C ode for I nformation I nterchange , generally pronounced 'aski', is a character set and a character encoding based on the Roman alphabet as used in modern English and other Western European languages. It is most commonly used b and UnicodeIn computing, Unicode is the international standard whose goal is to provide the means to encode the text of every document people want to store in computers. This includes all scripts still in active use today, many scripts known only by scholars, and sy code point for delete.
The number of provinces ruled by King Xerxes IXerxes I , was a Persian king (reigned 485 465 BC) of the Achaemenid dynasty. Xerxes" is the Greek attempt to spell the Persian name Khshayarsha''. In some versions of the Bible Xerxes I is known as Ahasuerus . Political Career A son of Darius I and Atoss, "from India to Ethiopia" ( Holy Bible, Esther 1:1).
The number of sons of Bethlehem at the Census of men of Israel upon return from exile (Holy Bible, Ezra 2:21).
The year AD 127 or 127 BC.

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Topics: 127 (number) Number Prime Twenty-seven Bible Holy Mersenne the...*

127Events Births Deaths 127.	1277Events The philosophical doctrine Averroism is banned from Paris by bishop Etienne Tempier Burma's Pagan empire begins to disintegrate after being defeated by Kublai Khan at Ngasaungsyan, near the Chinese border. The Khan ordered the invasion after the Bu	1270sCenturies: 12th century 13th century 14th century Decades: 1210s 1220s 1230s 1240s 1250s 1260s 1270s 1280s 1290s 1300s 1310s Years: 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 Events and Trends 1270s.
1276Events January 21 Innocent V elected Gregory X's successor as Pope March 9 Augsburg becomes an Imperial Free City June Rudolph I of Germany declares war on Ottokar II, king of Bohemia July 11, Adrian V elected Innocent V's successor as Pope John XXI succe	1275Events Eleanor de Montfort is captured by pirates in the employ of Edward I of England to prevent her marriage to Llywelyn the Last, prince of Wales Edward I of England also passes a statute that forces all Jews over the age of 7 to wear the yellow badge	1274Events May 7 In France the Second Council of Lyons opens to consider the condition of the Holy Land and to agree to a union with the Byzantine church. August 21 Philip III of France marries Marie de Brabant End of the reign of Emperor Kameyama of Japan Em
1273	1272	1271
1270	1278	1279
1270s BC	127 BC	127 film