2,006
2,006 is a composite number, even, a calendar year.
Notable events — 2006 AD
- Jan 19 NASA launches New Horizons on a mission to Pluto.
- Feb 10 The Winter Olympics open in Turin, Italy.
- Mar 21 Twitter launches.
- Aug 24 The IAU demotes Pluto from planet to dwarf-planet status.
- Dec 30 Saddam Hussein is executed in Baghdad.
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, 2006
- Ended on
-
Sunday
December 31, 2006
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 16
Sunday, April 16, 2006
- Decade
-
2000s
2000–2009
- Century
-
21st century
2001–2100
- Millennium
-
3rd millennium
2001–3000
- Years ago
-
20
20 years before 2026.
- FIFA World Cup
-
Yes
Men's FIFA World Cup is held every four years (skipped 1942 and 1946 due to WWII).
- Winter Olympics
-
Yes
Held in even years between Summer Games (2002, 2006, ...).
In other calendars
- Hebrew
-
5766 / 5767 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1426 / 1427 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
-
2549 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1384 / 1385 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1998 / 1999 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1928 / 1927 Saka
Indian national calendar; year starts in March.
- Japanese
-
Heisei 18
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,002
- Recamán's sequence
- a(3,739) = 2,006
- Square (n²)
- 4,024,036
- Cube (n³)
- 8,072,216,216
- Divisor count
- 8
- σ(n) — sum of divisors
- 3,240
- φ(n) — Euler's totient
- 928
- Sum of prime factors
- 78
Primality
Prime factorization: 2 × 17 × 59
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two thousand six
- Ordinal
- 2006th
- Roman numeral
- MMVI
- Binary
- 11111010110
- Octal
- 3726
- Hexadecimal
- 0x7D6
- Base64
- B9Y=
- One's complement
- 63,529 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βϛʹ
- Mayan (base 20)
- 𝋥·𝋠·𝋦
- Chinese
- 二千零六
- Chinese (financial)
- 貳仟零陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,006 = 7
- e — Euler's number (e)
- Digit 2,006 = 0
- φ — Golden ratio (φ)
- Digit 2,006 = 1
- √2 — Pythagoras's (√2)
- Digit 2,006 = 9
- ln 2 — Natural log of 2
- Digit 2,006 = 2
- γ — Euler-Mascheroni (γ)
- Digit 2,006 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2006, here are decompositions:
- 3 + 2003 = 2006
- 7 + 1999 = 2006
- 13 + 1993 = 2006
- 19 + 1987 = 2006
- 73 + 1933 = 2006
- 127 + 1879 = 2006
- 139 + 1867 = 2006
- 223 + 1783 = 2006
Showing the first eight; more decompositions exist.
UTF-8 encoding: DF 96 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.214.
- Address
- 0.0.7.214
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.214
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 2006 first appears in π at position 8,623 of the decimal expansion (the 8,623ordinal-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.