1,629
1,629 is a composite number, odd, a calendar year.
Notable events — 1629 AD
- Mar 6 Edict of Restitution restores Catholic Church property in the Empire.
- May 24 The Treaty of Lübeck ends Danish involvement in the Thirty Years' War.
- Sep 26 The Massachusetts Bay Colony is chartered.
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
-
Monday
January 1, 1629
- Ended on
-
Monday
December 31, 1629
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 15
Sunday, April 15, 1629
- Decade
-
1620s
1620–1629
- Century
-
17th century
1601–1700
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
397
397 years before 2026.
In other calendars
- Hebrew
-
5389 / 5390 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1038 / 1039 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
-
2172 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1007 / 1008 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1621 / 1622 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1551 / 1550 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 18
- Digit product
- 108
- Digital root
- 9
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 9,261
- Recamán's sequence
- a(694) = 1,629
- Square (n²)
- 2,653,641
- Cube (n³)
- 4,322,781,189
- Divisor count
- 6
- σ(n) — sum of divisors
- 2,366
- φ(n) — Euler's totient
- 1,080
- Sum of prime factors
- 187
Primality
Prime factorization: 3 2 × 181
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand six hundred twenty-nine
- Ordinal
- 1629th
- Roman numeral
- MDCXXIX
- Binary
- 11001011101
- Octal
- 3135
- Hexadecimal
- 0x65D
- Base64
- Bl0=
- One's complement
- 63,906 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αχκθʹ
- Mayan (base 20)
- 𝋤·𝋡·𝋩
- Chinese
- 一千六百二十九
- Chinese (financial)
- 壹仟陸佰貳拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,629 = 1
- e — Euler's number (e)
- Digit 1,629 = 0
- φ — Golden ratio (φ)
- Digit 1,629 = 9
- √2 — Pythagoras's (√2)
- Digit 1,629 = 7
- ln 2 — Natural log of 2
- Digit 1,629 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,629 = 8
Also seen as
UTF-8 encoding: D9 9D (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.93.
- Address
- 0.0.6.93
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.93
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1629 first appears in π at position 6,035 of the decimal expansion (the 6,035ordinal-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.