1,226
1,226 is a composite number, even, a calendar year.
Historical context — 1226 AD
Calendar year
Year 1226 (MCCXXVI) was a common year starting on Thursday of the Julian calendar.
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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
-
53
Long year: contains 53 ISO weeks.
- Started on
-
Thursday
January 1, 1226
- Ended on
-
Thursday
December 31, 1226
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
1220s
1220–1229
- Century
-
13th century
1201–1300
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
800
800 years before 2026.
In other calendars
- Hebrew
-
4986 / 4987 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
622 / 624 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Dog
Sexagenary cycle position 23 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1769 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
604 / 605 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1218 / 1219 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1148 / 1147 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 613
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand two hundred twenty-six
- Ordinal
- 1226th
- Roman numeral
- MCCXXVI
- Binary
- 10011001010
- Octal
- 2312
- Hexadecimal
- 0x4CA
- Base64
- BMo=
- One's complement
- 64,309 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ασκϛʹ
- Mayan (base 20)
- 𝋣·𝋡·𝋦
- Chinese
- 一千二百二十六
- Chinese (financial)
- 壹仟貳佰貳拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,226 = 1
- e — Euler's number (e)
- Digit 1,226 = 1
- φ — Golden ratio (φ)
- Digit 1,226 = 0
- √2 — Pythagoras's (√2)
- Digit 1,226 = 4
- ln 2 — Natural log of 2
- Digit 1,226 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,226 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1226, here are decompositions:
- 3 + 1223 = 1226
- 13 + 1213 = 1226
- 73 + 1153 = 1226
- 97 + 1129 = 1226
- 103 + 1123 = 1226
- 109 + 1117 = 1226
- 139 + 1087 = 1226
- 157 + 1069 = 1226
Showing the first eight; more decompositions exist.
UTF-8 encoding: D3 8A (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.202.
- Address
- 0.0.4.202
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.202
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1226 first appears in π at position 963 of the decimal expansion (the 963ordinal-suffix:rd 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.