284
284 is a composite number, even, a calendar year.
Historical context — 284 AD
Calendar year
Year 284 (CCLXXXIV) was a leap year starting on Tuesday of the Julian calendar.
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Historical context — 284 BC
Calendar year
Year 284 BC was a year of the pre-Julian Roman calendar.
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Year facts
- Year type
-
Leap year
Divisible by 4 and not by 100; February has 29 days.
- Days in year
- 366
- ISO weeks
- 52
- Started on
-
Tuesday
January 1, 284
- Ended on
-
Wednesday
December 31, 284
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
280s
280–289
- Century
-
3rd century
201–300
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,742
1742 years before 2026.
In other calendars
- Hebrew
-
4044 / 4045 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Wood zodiac:Dragon
Sexagenary cycle position 41 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
827 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
276 / 277 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
206 / 205 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 2 × 71
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two hundred eighty-four
- Ordinal
- 284th
- Roman numeral
- CCLXXXIV
- Binary
- 100011100
- Octal
- 434
- Hexadecimal
- 0x11C
- Base64
- ARw=
- One's complement
- 65,251 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- σπδʹ
- Mayan (base 20)
- 𝋮·𝋤
- Chinese
- 二百八十四
- Chinese (financial)
- 貳佰捌拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 284 = 3
- e — Euler's number (e)
- Digit 284 = 1
- φ — Golden ratio (φ)
- Digit 284 = 4
- √2 — Pythagoras's (√2)
- Digit 284 = 6
- ln 2 — Natural log of 2
- Digit 284 = 2
- γ — Euler-Mascheroni (γ)
- Digit 284 = 6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 284, here are decompositions:
- 3 + 281 = 284
- 7 + 277 = 284
- 13 + 271 = 284
- 43 + 241 = 284
- 61 + 223 = 284
- 73 + 211 = 284
- 103 + 181 = 284
- 127 + 157 = 284
Showing the first eight; more decompositions exist.
UTF-8 encoding: C4 9C (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.28.
- Address
- 0.0.1.28
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.28
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 284 is an active NANP area code (North American Numbering Plan).
- Primary area
- Statewide
- Region
- British Virgin Islands
- Country
- British Virgin Islands
Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.