2,023
2,023 is a composite number, odd, a calendar year.
Notable events — 2023 AD
- Feb 6 A magnitude 7.8 earthquake strikes Turkey and Syria, killing over 50,000.
- Mar 10 Iran and Saudi Arabia restore diplomatic ties in a deal mediated by China.
- Mar 10 Silicon Valley Bank collapses, the largest US bank failure since 2008.
- Mar 14 OpenAI releases GPT-4.
- Mar 17 The International Criminal Court issues an arrest warrant for Vladimir Putin.
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
-
Sunday
January 1, 2023
- Ended on
-
Sunday
December 31, 2023
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 9
Sunday, April 9, 2023
- Decade
-
2020s
2020–2029
- Century
-
21st century
2001–2100
- Millennium
-
3rd millennium
2001–3000
- Years ago
-
3
3 years before 2026.
In other calendars
- Hebrew
-
5783 / 5784 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1444 / 1445 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Rabbit
Sexagenary cycle position 40 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2566 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1401 / 1402 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
2015 / 2016 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1945 / 1944 Saka
Indian national calendar; year starts in March.
- Japanese
-
Reiwa 5
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 7
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 3,202
- Recamán's sequence
- a(3,705) = 2,023
- Square (n²)
- 4,092,529
- Cube (n³)
- 8,279,186,167
- Divisor count
- 6
- σ(n) — sum of divisors
- 2,456
- φ(n) — Euler's totient
- 1,632
- Sum of prime factors
- 41
Primality
Prime factorization: 7 × 17 2
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two thousand twenty-three
- Ordinal
- 2023rd
- Roman numeral
- MMXXIII
- Binary
- 11111100111
- Octal
- 3747
- Hexadecimal
- 0x7E7
- Base64
- B+c=
- One's complement
- 63,512 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵βκγʹ
- Mayan (base 20)
- 𝋥·𝋡·𝋣
- Chinese
- 二千零二十三
- Chinese (financial)
- 貳仟零貳拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,023 = 8
- e — Euler's number (e)
- Digit 2,023 = 5
- φ — Golden ratio (φ)
- Digit 2,023 = 0
- √2 — Pythagoras's (√2)
- Digit 2,023 = 8
- ln 2 — Natural log of 2
- Digit 2,023 = 8
- γ — Euler-Mascheroni (γ)
- Digit 2,023 = 5
Also seen as
UTF-8 encoding: DF A7 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.231.
- Address
- 0.0.7.231
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.231
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 2023 first appears in π at position 10,414 of the decimal expansion (the 10,414ordinal-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.