|
Number: 84 |
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| Facts about the number: 84 is the code for international direct dial phone calls to Vietnam. 84 is the atomic number of polonium. 84 is the sum of the first seven triangular numbers (making it a tetrahedral number), as well as the sum of a twin prime (41 + 43). 84 is also the lim sup of the largest finite subgroup of the mapping class group of a genus g surface divided by g. 84 is the largest order of a permutation of 14 elements. |
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| The number of digits in the number: \( n \): \( d = \lfloor \log_{10}(n) \rfloor + 1 \) |
2 | |
| Sum of the digits: \( n \): \( S = \sum_{i=1}^{k} d_i \) |
12 | |
| Reverse number: \( \text{Reverse}(n) = \sum_{i=1}^{k} d_i \cdot 10^{k-i} \) |
0.011904761904762 | |
| Binary number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 2^i \) |
1111010011111101110010000010111110110110110 | |
| Hexadecimal number system: \( n = \sum_{i=0}^{k-1} d_i \cdot 16^i \) |
7a7ee417db6 | |
| 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: \(\sqrt{n} = n^{\frac{1}{2}}\) |
9.1651513899117 | |
| The factorial of the number: \( n!=n \times (n-1) \times (n-2) \times \ldots \times 2 \times 1 \) |
3.3142401345654E+126 | |
| 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: \(\sin(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n+1}}{(2n+1)!}\) |
0.73319032007329 | |
| Cosine: \(\cos(x) = \sum_{n=0}^{\infty} \frac{(-1)^n x^{2n}}{(2n)!}\) |
-0.68002349558734 | |
| Tangent: \(\tan(x) = \sum_{n=0}^{\infty} \frac{(-1)^n 2^{2n} (2^{2n} - 1) B_{2n} x^{2n-1}}{(2n)!}\) |
-1.078183805164 | |
| The square of the number: \(\text{square}(n) = n^2\) |
7056 | |
| Cubic root: \(\text{}(n) = \sqrt[3]{n}\) |
4.3795191398879 | |
| Natural logarithm: \(\ln(ab) = \ln(a) + \ln(b)\) |
4.4308167988433 | |
| Common logarithm: \(\log_{10}(ab) = \log_{10}(a) + \log_{10}(b)\) |
1.9242792860619 | |
| All divisors of a number: \( D(n) = \{ d \in \mathbb{Z}^+ : n \mod d = 0 \} \) |
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 | |
| Base64: | ODQuMTc4MzgyMDIyOTQ= | |
| SHA1: | b2075c99607038ea53cc83cc2f643e57cee34417 | |
| MD5: | f3f8215df55975003250454d9558d9d2 | |
| Converts a number to a Roman representation: | LXXXIV | |
| Converting the number of seconds to days, hours, minutes and seconds: | days: 0, hours: 0, minutes: 1, seconds: 24. | |
| 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: | ||
| 84 kilometers = 84,000.00 meters | ||
| 84 miles = 135,184.56 meters | ||
| 84 feet = 25.60 meters | ||
| 84 inches = 2.13 meters | ||
| 84 yards = 76.81 meters | ||
| 84 meters = 0.08 kilometers | ||
| 84 meters = 0.05 miles | ||
| 84 meters = 275.59 feet | ||
| 84 meters = 3,307.09 inches | ||
| 84 meters = 91.86 yards | ||
| Weight: | ||
| 84 pounds = 38.10 kilograms | ||
| 84 grams = 0.08 kilograms | ||
| 84 ounces = 2.38 kilograms | ||
| 84 tons = 76,203.54 kilograms | ||
| 84 kilograms = 185.19 pounds | ||
| 84 kilograms = 84,000.00 grams | ||
| 84 kilograms = 2,963.02 ounces | ||
| 84 kilograms = 0.09 tons | ||
| Volume: | ||
| 84 gallons = 317.97 liters | ||
| 84 milliliters = 0.08 liters | ||
| 84 cubic meters = 84,000.00 liters | ||
| 84 liters = 22.19 gallons | ||
| 84 liters = 84,000.00 milliliters | ||
| 84 liters = 0.08 cubic meters | ||
| Area: | ||
| 84 acres = 339,936.24 square meters | ||
| 84 hectares = 840,000.00 square meters | ||
| 84 square feet = 7.80 square meters | ||
| 84 square inches = 0.05 square meters | ||
| 84 square meters = 0.02 acres | ||
| 84 square meters = 0.01 hectares | ||
| 84 square meters = 904.17 square feet | ||
| 84 square meters = 130,200.26 square inches | ||
| Temperature: | ||
| 84 celsius = 183.20 fahrenheit | ||
| 84 celsius = 357.15 kelvin | ||
| 84 fahrenheit = 28.89 celsius | ||
| 84 fahrenheit = 302.04 kelvin | ||
| 84 kelvin = -189.15 celsius | ||
| 84 kelvin = -308.47 fahrenheit | ||
| Time: | ||
| 84 seconds = 1.40 minutes | ||
| 84 seconds = 0.02 hours | ||
| 84 seconds = 0.00 days | ||
| 84 minutes = 5,040.00 seconds | ||
| 84 minutes = 1.40 hours | ||
| 84 minutes = 0.06 days | ||
| 84 hours = 302,400.00 seconds | ||
| 84 hours = 5,040.00 minutes | ||
| 84 hours = 3.50 days | ||
| 84 days = 7,257,600.00 seconds | ||
| 84 days = 120,960.00 minutes | ||
| 84 days = 2,016.00 hours | ||
| Energy: | ||
| 84 joules = 20.08 calories | ||
| 84 joules = 0.08 kilojoules | ||
| 84 joules = 0.02 watt hours | ||
| 84 calories = 351.46 joules | ||
| 84 calories = 0.35 kilojoules | ||
| 84 kilojoules = 84,000.00 joules | ||
| 84 kilojoules = 20,076.50 calories | ||
| 84 watt hours = 302,400.00 joules | ||
| 84 watt hours = 302.40 kilojoules | ||
| Information: | ||
| 84 bytes = 0.08 kilobytes | ||
| 84 kilobytes = 86,016.00 bytes | ||
| 84 kilobytes = 0.08 megabytes | ||
| 84 megabytes = 86,016.00 kilobytes | ||
| 84 megabytes = 0.08 gigabytes | ||
| 84 gigabytes = 86,016.00 megabytes | ||
| 84 gigabytes = 0.08 terabytes | ||
| 84 terabytes = 86,016.00 gigabytes | ||