1,569
1,569 is a composite number, odd, a calendar year.
Notable events — 1569 AD
- Jul 1 The Union of Lublin creates the Polish-Lithuanian Commonwealth.
- Undated Gerardus Mercator publishes his world map projection.
- Nov 9 The Rising of the North against Elizabeth I begins in 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
-
Wednesday
January 1, 1569
- Ended on
-
Wednesday
December 31, 1569
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1560s
1560–1569
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
457
457 years before 2026.
In other calendars
- Hebrew
-
5329 / 5330 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
976 / 977 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Snake
Sexagenary cycle position 6 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2112 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
947 / 948 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1561 / 1562 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1491 / 1490 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 3 × 523
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred sixty-nine
- Ordinal
- 1569th
- Roman numeral
- MDLXIX
- Binary
- 11000100001
- Octal
- 3041
- Hexadecimal
- 0x621
- Base64
- BiE=
- One's complement
- 63,966 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφξθʹ
- Mayan (base 20)
- 𝋣·𝋲·𝋩
- Chinese
- 一千五百六十九
- Chinese (financial)
- 壹仟伍佰陸拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,569 = 6
- e — Euler's number (e)
- Digit 1,569 = 2
- φ — Golden ratio (φ)
- Digit 1,569 = 9
- √2 — Pythagoras's (√2)
- Digit 1,569 = 4
- ln 2 — Natural log of 2
- Digit 1,569 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,569 = 8
Also seen as
UTF-8 encoding: D8 A1 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.33.
- Address
- 0.0.6.33
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.33
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1569 first appears in π at position 2,327 of the decimal expansion (the 2,327ordinal-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.