1,203
1,203 is a composite number, odd, a calendar year.
Historical context — 1203 AD
Calendar year
Year 1203 (MCCIII) was a common year starting on Wednesday 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
- 52
- Started on
-
Wednesday
January 1, 1203
- Ended on
-
Wednesday
December 31, 1203
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1200s
1200–1209
- Century
-
13th century
1201–1300
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
823
823 years before 2026.
In other calendars
- Hebrew
-
4963 / 4964 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
599 / 600 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Pig
Sexagenary cycle position 60 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1746 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
581 / 582 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1195 / 1196 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1125 / 1124 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 3 × 401
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand two hundred three
- Ordinal
- 1203rd
- Roman numeral
- MCCIII
- Binary
- 10010110011
- Octal
- 2263
- Hexadecimal
- 0x4B3
- Base64
- BLM=
- One's complement
- 64,332 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋 𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓏺𓏺𓏺
- Greek (Milesian)
- ͵ασγʹ
- Mayan (base 20)
- 𝋣·𝋠·𝋣
- Chinese
- 一千二百零三
- Chinese (financial)
- 壹仟貳佰零參
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,203 = 5
- e — Euler's number (e)
- Digit 1,203 = 5
- φ — Golden ratio (φ)
- Digit 1,203 = 0
- √2 — Pythagoras's (√2)
- Digit 1,203 = 5
- ln 2 — Natural log of 2
- Digit 1,203 = 9
- γ — Euler-Mascheroni (γ)
- Digit 1,203 = 5
Also seen as
UTF-8 encoding: D2 B3 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.179.
- Address
- 0.0.4.179
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.179
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 1203 first appears in π at position 60,872 of the decimal expansion (the 60,872ordinal-suffix:nd 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.