1,086
1,086 is a composite number, even, a calendar year.
Notable events — 1086 AD
- Undated William the Conqueror commissions the Domesday Book, a comprehensive survey of England.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
Year facts
- Year type
-
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
- Days in year
- 365
- ISO weeks
- 52
- Started on
-
Friday
January 1, 1086
- Ended on
-
Friday
December 31, 1086
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1080s
1080–1089
- Century
-
11th century
1001–1100
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
940
940 years before 2026.
In other calendars
- Hebrew
-
4846 / 4847 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
478 / 479 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Tiger
Sexagenary cycle position 3 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1629 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
464 / 465 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1078 / 1079 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1008 / 1007 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,801
- Flips to (rotate 180°)
- 9,801
- Recamán's sequence
- a(4,247) = 1,086
- Square (n²)
- 1,179,396
- Cube (n³)
- 1,280,824,056
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,184
- φ(n) — Euler's totient
- 360
- Sum of prime factors
- 186
Primality
Prime factorization: 2 × 3 × 181
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand eighty-six
- Ordinal
- 1086th
- Roman numeral
- MLXXXVI
- Binary
- 10000111110
- Octal
- 2076
- Hexadecimal
- 0x43E
- Base64
- BD4=
- One's complement
- 64,449 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵απϛʹ
- Mayan (base 20)
- 𝋢·𝋮·𝋦
- Chinese
- 一千零八十六
- Chinese (financial)
- 壹仟零捌拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,086 = 2
- e — Euler's number (e)
- Digit 1,086 = 1
- φ — Golden ratio (φ)
- Digit 1,086 = 6
- √2 — Pythagoras's (√2)
- Digit 1,086 = 5
- ln 2 — Natural log of 2
- Digit 1,086 = 1
- γ — Euler-Mascheroni (γ)
- Digit 1,086 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1086, here are decompositions:
- 17 + 1069 = 1086
- 23 + 1063 = 1086
- 37 + 1049 = 1086
- 47 + 1039 = 1086
- 53 + 1033 = 1086
- 67 + 1019 = 1086
- 73 + 1013 = 1086
- 89 + 997 = 1086
Showing the first eight; more decompositions exist.
UTF-8 encoding: D0 BE (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.62.
- Address
- 0.0.4.62
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.62
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1086 first appears in π at position 7,450 of the decimal expansion (the 7,450ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.