Number: 30

Facts about the number: 30 is the number of hours of the longest kiss on record, by Dror Orpaz and Carmit Tsubara in 1999 at a kissing contest. 30 is the number of tracks on The Beatles' eponymous album, usually known as The White Album. 30 is the total number of major and minor keys in Western tonal music, including enharmonic equivalents. 30 is the number of uprights that formed the Sarsen Circle at Stonehenge, also the supposed number of holes forming the arrays of Y and Z Holes at Stonehenge. 30 is the height in feet that stalks of sugar cane can reach up to. 30 is the number of years that tarantulas can live up to. 30 is the smallest sphenic number, and the smallest of the form where r is a prime greater than 3. 30 is the largest number with the property that all smaller numbers relatively prime to it are prime. 30 is the sum of the first four squares, which makes it a square pyramidal number. 30 is the largest number such that all coprimes smaller than itself, except for 1, are prime. 30 is the percentage of methane on Earth produced from the flatulence of domesticated cows. 30 is a primorial and is the smallest Giuga number.
The number of digits in the number: \( n \): \( d = \lfloor \log_{10}(n) \rfloor + 1 \)	2
Sum of the digits: \( n \): \( S = \sum_{i=1}^{k} d_i \)	3
Reverse number: \( \text{Reverse}(n) = \sum_{i=1}^{k} d_i \cdot 10^{k-i} \)	0.033333333333333
Binary number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 2^i \)	101111000011
Hexadecimal number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 16^i \)	bc3
Parity of the number: \( \text{Parity}(n) = n \mod 2 \)	even
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: \(\sqrt{n} = n^{\frac{1}{2}}\)	5.4772255750517
The factorial of the number: \( n!=n \times (n-1) \times (n-2) \times \ldots \times 2 \times 1 \)	2.6525285981219E+32
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: \(\sin(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n+1}}{(2n+1)!}\)	-0.98803162409286
Cosine: \(\cos(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n}}{(2n)!}\)	0.15425144988758
Tangent: \(\tan(x) = \sum_{n=0}^{\infty} \frac{(-1)^n 2^{2n} (2^{2n} - 1) B_{2n} x^{2n-1}}{(2n)!}\)	-6.4053311966463
The square of the number: \(\text{square}(n) = n^2\)	900
Cubic root: \(\text{}(n) = \sqrt[3]{n}\)	3.1072325059539
Natural logarithm: \(\ln(ab) = \ln(a) + \ln(b)\)	3.4011973816622
Common logarithm: \(\log_{10}(ab) = \log_{10}(a) + \log_{10}(b)\)	1.4771212547197
All divisors of a number: \( D(n) = \{ d \in \mathbb{Z}^+ : n \mod d = 0 \} \)	1, 2, 3, 5, 6, 10, 15, 30
Base64:	MzAuMTE=
SHA1:	5c575b23ac685a12c7f2e343c4af96c0c28be391
MD5:	df86d1ab619cbeb859864f6ff78c1b1b
Converts a number to a Roman representation:	XXX
Converting the number of seconds to days, hours, minutes and seconds:	days: 0, hours: 0, minutes: 0, seconds: 30.
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:
	30 kilometers = 30,000.00 meters
	30 miles = 48,280.20 meters
	30 feet = 9.14 meters
	30 inches = 0.76 meters
	30 yards = 27.43 meters
	30 meters = 0.03 kilometers
	30 meters = 0.02 miles
	30 meters = 98.43 feet
	30 meters = 1,181.10 inches
	30 meters = 32.81 yards
Weight:
	30 pounds = 13.61 kilograms
	30 grams = 0.03 kilograms
	30 ounces = 0.85 kilograms
	30 tons = 27,215.55 kilograms
	30 kilograms = 66.14 pounds
	30 kilograms = 30,000.00 grams
	30 kilograms = 1,058.22 ounces
	30 kilograms = 0.03 tons
Volume:
	30 gallons = 113.56 liters
	30 milliliters = 0.03 liters
	30 cubic meters = 30,000.00 liters
	30 liters = 7.93 gallons
	30 liters = 30,000.00 milliliters
	30 liters = 0.03 cubic meters
Area:
	30 acres = 121,405.80 square meters
	30 hectares = 300,000.00 square meters
	30 square feet = 2.79 square meters
	30 square inches = 0.02 square meters
	30 square meters = 0.01 acres
	30 square meters = 0.00 hectares
	30 square meters = 322.92 square feet
	30 square meters = 46,500.09 square inches
Temperature:
	30 celsius = 86.00 fahrenheit
	30 celsius = 303.15 kelvin
	30 fahrenheit = -1.11 celsius
	30 fahrenheit = 272.04 kelvin
	30 kelvin = -243.15 celsius
	30 kelvin = -405.67 fahrenheit
Time:
	30 seconds = 0.50 minutes
	30 seconds = 0.01 hours
	30 seconds = 0.00 days
	30 minutes = 1,800.00 seconds
	30 minutes = 0.50 hours
	30 minutes = 0.02 days
	30 hours = 108,000.00 seconds
	30 hours = 1,800.00 minutes
	30 hours = 1.25 days
	30 days = 2,592,000.00 seconds
	30 days = 43,200.00 minutes
	30 days = 720.00 hours
Energy:
	30 joules = 7.17 calories
	30 joules = 0.03 kilojoules
	30 joules = 0.01 watt hours
	30 calories = 125.52 joules
	30 calories = 0.13 kilojoules
	30 kilojoules = 30,000.00 joules
	30 kilojoules = 7,170.18 calories
	30 watt hours = 108,000.00 joules
	30 watt hours = 108.00 kilojoules
Information:
	30 bytes = 0.03 kilobytes
	30 kilobytes = 30,720.00 bytes
	30 kilobytes = 0.03 megabytes
	30 megabytes = 30,720.00 kilobytes
	30 megabytes = 0.03 gigabytes
	30 gigabytes = 30,720.00 megabytes
	30 gigabytes = 0.03 terabytes
	30 terabytes = 30,720.00 gigabytes