Number: 123

Facts about the number: 123 is the Notation for national and international telephone numbers Recommendation ITU-T Recommendation E.123 defines a standard way to write telephone numbers, e-mail addresses, and web addresses. 123 is the emergency telephone number in Colombia. 123 is the medical emergency telephone number in Egypt. 123 is the atomic number of the yet-to-be-discovered element unbitrium. 123 is the 10^{th} Lucas number.
The number of digits in the number: \( n \): \( d = \lfloor \log_{10}(n) \rfloor + 1 \)	3
Sum of the digits: \( n \): \( S = \sum_{i=1}^{k} d_i \)	6
Reverse number: \( \text{Reverse}(n) = \sum_{i=1}^{k} d_i \cdot 10^{k-i} \)	0.008130081300813
Binary number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 2^i \)	11000000011010
Hexadecimal number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 16^i \)	301a
Parity of the number: \( \text{Parity}(n) = n \mod 2 \)	odd
Simplicity of the number: \(\text{IsPrime}(n) = n > 1 \land \forall d \in [2, \sqrt{n}], n \mod d \neq 0\)	false
The square root: \(\sqrt{n} = n^{\frac{1}{2}}\)	11.090536506409
The factorial of the number: \( n!=n \times (n-1) \times (n-2) \times \ldots \times 2 \times 1 \)	1.2146304367025E+205
The sign of the number: \(\text{sign}(n) = \begin{cases} 1, & \text{if } n>0 \ 0, & \text{if } n=0 \ -1, & \text{if } n<0 \end{cases}\)	+
The nearest multiple of 10: \(\text{10}(n) = 10 \times \left\lfloor \frac{n + 5}{10} \right\rfloor\)	0
The nearest multiple of 100: \(\text{100}(n) = 100 \times \left\lfloor \frac{n + 50}{100} \right\rfloor\)	0
Sine: \(\sin(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n+1}}{(2n+1)!}\)	-0.45990349068959
Cosine: \(\cos(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n}}{(2n)!}\)	-0.88796890669186
Tangent: \(\tan(x) = \sum_{n=0}^{\infty} \frac{(-1)^n 2^{2n} (2^{2n} - 1) B_{2n} x^{2n-1}}{(2n)!}\)	0.51792747158566
The square of the number: \(\text{square}(n) = n^2\)	15129
Cubic root: \(\text{}(n) = \sqrt[3]{n}\)	4.9731898332686
Natural logarithm: \(\ln(ab) = \ln(a) + \ln(b)\)	4.8121843553724
Common logarithm: \(\log_{10}(ab) = \log_{10}(a) + \log_{10}(b)\)	2.0899051114394
All divisors of a number: \( D(n) = \{ d \in \mathbb{Z}^+ : n \mod d = 0 \} \)	1, 3, 41, 123
Base64:	MTIzLjE0
SHA1:	c8be145db3f3b2176e89276aed03277f61cd37db
MD5:	e7e6300f35ff7c6ddf40f6d37e40c3bf
Converts a number to a Roman representation:	CXXIII
Converting the number of seconds to days, hours, minutes and seconds:	days: 0, hours: 0, minutes: 2, seconds: 3.
Converts a number to a date in UNIX time format:
	Chinese:	1970 月 1 星期四
	Spanish:	1970 Enero 1 Jueves
	English:	1970 January 1 Thursday
	Hindi:	1970 जनवरी 1 गुरुवार
	Arab:	1970 يناير 1 الخميس
	Bengal:	1970 জানুয়ারী 1 বৃহস্পতিবার
	Portuguese:	1970 Janeiro 1 Quinta-feira
	Russian:	1970 Январь 1 Четверг
	Japanese:	1970 一月 1 木曜日
	Lahnda:	1970 جنوری 1 جمعرات
	Marathi:	1970 जानेवारी 1 गुरुवार
	Telugu:	1970 జనవరి 1 గురువారం
	Malay:	1970 Januari 1 Khamis
	Turkish:	1970 Ocak 1 Perşembe
	Korean:	1970 1월 1 목요일
	French:	1970 Janvier 1 Jeudi
	German:	1970 Januar 1 Donnerstag
	Vietnamese:	1970 Tháng Một 1 Thứ năm
	Tamil:	1970 ஜனவரி 1 வியாழக்கிழமை
	Urdu:	1970 جنوری 1 جمعرات
	Javanese:	1970 Januari 1 Kemis
	Italian:	1970 Gennaio 1 Giovedì
	Persian:	1970 ژانویه 1 پنج‌شنبه
	Gujaratis:	1970 જાન્યુઆરી 1 ગુરુવાર
Length:
	123 kilometers = 123,000.00 meters
	123 miles = 197,948.82 meters
	123 feet = 37.49 meters
	123 inches = 3.12 meters
	123 yards = 112.47 meters
	123 meters = 0.12 kilometers
	123 meters = 0.08 miles
	123 meters = 403.54 feet
	123 meters = 4,842.52 inches
	123 meters = 134.51 yards
Weight:
	123 pounds = 55.79 kilograms
	123 grams = 0.12 kilograms
	123 ounces = 3.49 kilograms
	123 tons = 111,583.76 kilograms
	123 kilograms = 271.17 pounds
	123 kilograms = 123,000.00 grams
	123 kilograms = 4,338.70 ounces
	123 kilograms = 0.14 tons
Volume:
	123 gallons = 465.61 liters
	123 milliliters = 0.12 liters
	123 cubic meters = 123,000.00 liters
	123 liters = 32.49 gallons
	123 liters = 123,000.00 milliliters
	123 liters = 0.12 cubic meters
Area:
	123 acres = 497,763.78 square meters
	123 hectares = 1,230,000.00 square meters
	123 square feet = 11.43 square meters
	123 square inches = 0.08 square meters
	123 square meters = 0.03 acres
	123 square meters = 0.01 hectares
	123 square meters = 1,323.96 square feet
	123 square meters = 190,650.38 square inches
Temperature:
	123 celsius = 253.40 fahrenheit
	123 celsius = 396.15 kelvin
	123 fahrenheit = 50.56 celsius
	123 fahrenheit = 323.71 kelvin
	123 kelvin = -150.15 celsius
	123 kelvin = -238.27 fahrenheit
Time:
	123 seconds = 2.05 minutes
	123 seconds = 0.03 hours
	123 seconds = 0.00 days
	123 minutes = 7,380.00 seconds
	123 minutes = 2.05 hours
	123 minutes = 0.09 days
	123 hours = 442,800.00 seconds
	123 hours = 7,380.00 minutes
	123 hours = 5.13 days
	123 days = 10,627,200.00 seconds
	123 days = 177,120.00 minutes
	123 days = 2,952.00 hours
Energy:
	123 joules = 29.40 calories
	123 joules = 0.12 kilojoules
	123 joules = 0.03 watt hours
	123 calories = 514.63 joules
	123 calories = 0.51 kilojoules
	123 kilojoules = 123,000.00 joules
	123 kilojoules = 29,397.74 calories
	123 watt hours = 442,800.00 joules
	123 watt hours = 442.80 kilojoules
Information:
	123 bytes = 0.12 kilobytes
	123 kilobytes = 125,952.00 bytes
	123 kilobytes = 0.12 megabytes
	123 megabytes = 125,952.00 kilobytes
	123 megabytes = 0.12 gigabytes
	123 gigabytes = 125,952.00 megabytes
	123 gigabytes = 0.12 terabytes
	123 terabytes = 125,952.00 gigabytes