884
884 is a composite number, even, a calendar year.
884 (eight hundred eighty-four) is an even 3-digit number. It is a composite number with 12 divisors, and factors as 2² × 13 × 17. Written other ways, in Roman numerals it is DCCCLXXXIV and in binary, 1101110100.
Interestingness
Historical context — 884 AD
Calendar year
Year 884 (DCCCLXXXIV) was a leap year starting on Wednesday of the Julian calendar.
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Historical context — 884 BC
Decade
This article concerns the period 889 BC – 880 BC.
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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
-
Saturday
January 1, 884
- Ended on
-
Sunday
December 31, 884
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
880s
880–889
- Century
-
9th century
801–900
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,142
1142 years before 2026.
In other calendars
- Hebrew
-
4644 / 4645 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
270 / 271 AH
Lunar calendar; year spans differ from Gregorian.
- 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
-
1427 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
262 / 263 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
876 / 877 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
806 / 805 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 2 × 13 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√884 = [29; (1, 2, 1, 2, 1, 2, 1, 58)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- eight hundred eighty-four
- Ordinal
- 884th
- Roman numeral
- DCCCLXXXIV
- Binary
- 1101110100
- Octal
- 1564
- Hexadecimal
- 0x374
- Base64
- A3Q=
- One's complement
- 64,651 (16-bit)
- Scientific notation
- 8.84 × 10²
- As a duration
- 884 s = 14 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ωπδʹ
- Mayan (base 20)
- 𝋢·𝋤·𝋤
- Chinese
- 八百八十四
- Chinese (financial)
- 捌佰捌拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 884 = 4
- e — Euler's number (e)
- Digit 884 = 0
- φ — Golden ratio (φ)
- Digit 884 = 8
- √2 — Pythagoras's (√2)
- Digit 884 = 1
- ln 2 — Natural log of 2
- Digit 884 = 8
- γ — Euler-Mascheroni (γ)
- Digit 884 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 884, here are decompositions:
- 3 + 881 = 884
- 7 + 877 = 884
- 31 + 853 = 884
- 61 + 823 = 884
- 73 + 811 = 884
- 97 + 787 = 884
- 127 + 757 = 884
- 151 + 733 = 884
Showing the first eight; more decompositions exist.
UTF-8 encoding: CD B4 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.116.
- Address
- 0.0.3.116
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.3.116
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 884 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A5 (880 Hz, +8¢)
- Scientific pitch (C4 = 256 Hz): A5 (861.1 Hz, +45¢ — about midway to A♯5)
- Baroque pitch (A4 = 415 Hz): A♯5 (879.4 Hz, +9¢)
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.