1,679
1,679 is a composite number, odd, a calendar year.
Notable events — 1679 AD
- May 27 Habeas Corpus Act passes in England.
- Jun 22 The Battle of Bothwell Bridge crushes Scottish Covenanters.
- Jun 5 The Exclusion Bill crisis intensifies 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
-
Sunday
January 1, 1679
- Ended on
-
Sunday
December 31, 1679
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 2
Sunday, April 2, 1679
- Decade
-
1670s
1670–1679
- Century
-
17th century
1601–1700
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
347
347 years before 2026.
In other calendars
- Hebrew
-
5439 / 5440 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1089 / 1090 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Goat
Sexagenary cycle position 56 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2222 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1057 / 1058 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1671 / 1672 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1601 / 1600 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 23 × 73
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand six hundred seventy-nine
- Ordinal
- 1679th
- Roman numeral
- MDCLXXIX
- Binary
- 11010001111
- Octal
- 3217
- Hexadecimal
- 0x68F
- Base64
- Bo8=
- One's complement
- 63,856 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αχοθʹ
- Mayan (base 20)
- 𝋤·𝋣·𝋳
- Chinese
- 一千六百七十九
- Chinese (financial)
- 壹仟陸佰柒拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,679 = 4
- e — Euler's number (e)
- Digit 1,679 = 9
- φ — Golden ratio (φ)
- Digit 1,679 = 9
- √2 — Pythagoras's (√2)
- Digit 1,679 = 2
- ln 2 — Natural log of 2
- Digit 1,679 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,679 = 8
Also seen as
UTF-8 encoding: DA 8F (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.143.
- Address
- 0.0.6.143
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.143
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1679 first appears in π at position 20,701 of the decimal expansion (the 20,701ordinal-suffix:st 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.