1,069
1,069 is a prime, odd, a calendar year.
Historical context — 1069 AD
Calendar year
1069 (MLXIX) was a common year starting on Thursday of the Julian calendar, the 1069th year of the Common Era (CE) and Anno Domini (AD) designations, the 69th year of the 2nd millennium and the 11th century, and the 10th and last year of the 1060s decade.
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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, 1069
- Ended on
-
Friday
December 31, 1069
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1060s
1060–1069
- Century
-
11th century
1001–1100
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
957
957 years before 2026.
In other calendars
- Hebrew
-
4829 / 4830 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
461 / 462 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Rooster
Sexagenary cycle position 46 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1612 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
447 / 448 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1061 / 1062 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
991 / 990 Saka
Indian national calendar; year starts in March.
Properties
Primality
1,069 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand sixty-nine
- Ordinal
- 1069th
- Roman numeral
- MLXIX
- Binary
- 10000101101
- Octal
- 2055
- Hexadecimal
- 0x42D
- Base64
- BC0=
- One's complement
- 64,466 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αξθʹ
- Mayan (base 20)
- 𝋢·𝋭·𝋩
- Chinese
- 一千零六十九
- Chinese (financial)
- 壹仟零陸拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,069 = 3
- e — Euler's number (e)
- Digit 1,069 = 9
- φ — Golden ratio (φ)
- Digit 1,069 = 3
- √2 — Pythagoras's (√2)
- Digit 1,069 = 1
- ln 2 — Natural log of 2
- Digit 1,069 = 8
- γ — Euler-Mascheroni (γ)
- Digit 1,069 = 6
Also seen as
UTF-8 encoding: D0 AD (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.45.
- Address
- 0.0.4.45
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.45
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1069 first appears in π at position 41,789 of the decimal expansion (the 41,789ordinal-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.