1,443
1,443 is a composite number, odd, a calendar year.
Historical context — 1443 AD
Calendar year
Year 1443 (MCDXLIII) was a common year starting on Tuesday 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
-
Sunday
January 1, 1443
- Ended on
-
Sunday
December 31, 1443
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1440s
1440–1449
- Century
-
15th century
1401–1500
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
583
583 years before 2026.
In other calendars
- Hebrew
-
5203 / 5204 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
846 / 847 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
-
1986 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
821 / 822 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1435 / 1436 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1365 / 1364 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 12
- Digit product
- 48
- Digital root
- 3
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 3,441
- Recamán's sequence
- a(1,674) = 1,443
- Square (n²)
- 2,082,249
- Cube (n³)
- 3,004,685,307
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,128
- φ(n) — Euler's totient
- 864
- Sum of prime factors
- 53
Primality
Prime factorization: 3 × 13 × 37
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand four hundred forty-three
- Ordinal
- 1443rd
- Roman numeral
- MCDXLIII
- Binary
- 10110100011
- Octal
- 2643
- Hexadecimal
- 0x5A3
- Base64
- BaM=
- One's complement
- 64,092 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵αυμγʹ
- Mayan (base 20)
- 𝋣·𝋬·𝋣
- Chinese
- 一千四百四十三
- Chinese (financial)
- 壹仟肆佰肆拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,443 = 8
- e — Euler's number (e)
- Digit 1,443 = 9
- φ — Golden ratio (φ)
- Digit 1,443 = 8
- √2 — Pythagoras's (√2)
- Digit 1,443 = 0
- ln 2 — Natural log of 2
- Digit 1,443 = 1
- γ — Euler-Mascheroni (γ)
- Digit 1,443 = 0
Also seen as
UTF-8 encoding: D6 A3 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.163.
- Address
- 0.0.5.163
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.163
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1443 first appears in π at position 15,151 of the decimal expansion (the 15,151ordinal-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.