2,043
2,043 is a composite number, odd, a calendar year.
Historical context — 2043 AD
Current millennium spanning the years 2001 to 3000
The third millennium of the Anno Domini or Common Era is the current millennium spanning the years 2001 to 3000.
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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, 2043
- Ended on
-
Thursday
December 31, 2043
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Easter Sunday
-
March 29
Sunday, March 29, 2043
- Decade
-
2040s
2040–2049
- Century
-
21st century
2001–2100
- Millennium
-
3rd millennium
2001–3000
- Years until
-
17
17 years after 2026.
In other calendars
- Hebrew
-
5803 / 5804 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1465 / 1466 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
-
2586 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1421 / 1422 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
2035 / 2036 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1965 / 1964 Saka
Indian national calendar; year starts in March.
- Japanese
-
Reiwa 25
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 9
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 3,402
- Recamán's sequence
- a(3,665) = 2,043
- Square (n²)
- 4,173,849
- Cube (n³)
- 8,527,173,507
- Divisor count
- 6
- σ(n) — sum of divisors
- 2,964
- φ(n) — Euler's totient
- 1,356
- Sum of prime factors
- 233
Primality
Prime factorization: 3 2 × 227
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two thousand forty-three
- Ordinal
- 2043rd
- Roman numeral
- MMXLIII
- Binary
- 11111111011
- Octal
- 3773
- Hexadecimal
- 0x7FB
- Base64
- B/s=
- One's complement
- 63,492 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵βμγʹ
- Mayan (base 20)
- 𝋥·𝋢·𝋣
- Chinese
- 二千零四十三
- Chinese (financial)
- 貳仟零肆拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,043 = 2
- e — Euler's number (e)
- Digit 2,043 = 8
- φ — Golden ratio (φ)
- Digit 2,043 = 0
- √2 — Pythagoras's (√2)
- Digit 2,043 = 3
- ln 2 — Natural log of 2
- Digit 2,043 = 8
- γ — Euler-Mascheroni (γ)
- Digit 2,043 = 8
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.251.
- Address
- 0.0.7.251
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.251
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 2043 first appears in π at position 10,395 of the decimal expansion (the 10,395ordinal-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.