2,018
2,018 is a composite number, even, a calendar year.
Notable events — 2018 AD
- Feb 6 SpaceX flies the Falcon Heavy on its maiden launch.
- Feb 9 The Winter Olympics open in Pyeongchang, South Korea.
- Feb 14 A gunman kills 17 at Marjory Stoneman Douglas High School in Parkland, Florida.
- Mar 4 Sergei and Yulia Skripal are poisoned with Novichok in Salisbury, England.
- Mar 19 The last male northern white rhinoceros dies, leaving the subspecies functionally extinct.
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
-
Monday
January 1, 2018
- Ended on
-
Monday
December 31, 2018
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 1
Sunday, April 1, 2018
- Decade
-
2010s
2010–2019
- Century
-
21st century
2001–2100
- Millennium
-
3rd millennium
2001–3000
- Years ago
-
8
8 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
-
5778 / 5779 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1439 / 1440 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Dog
Sexagenary cycle position 35 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2561 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1396 / 1397 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
2010 / 2011 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1940 / 1939 Saka
Indian national calendar; year starts in March.
- Japanese
-
Heisei 30
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,102
- Recamán's sequence
- a(3,715) = 2,018
- Square (n²)
- 4,072,324
- Cube (n³)
- 8,217,949,832
- Divisor count
- 4
- σ(n) — sum of divisors
- 3,030
- φ(n) — Euler's totient
- 1,008
- Sum of prime factors
- 1,011
Primality
Prime factorization: 2 × 1009
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two thousand eighteen
- Ordinal
- 2018th
- Roman numeral
- MMXVIII
- Binary
- 11111100010
- Octal
- 3742
- Hexadecimal
- 0x7E2
- Base64
- B+I=
- One's complement
- 63,517 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βιηʹ
- Mayan (base 20)
- 𝋥·𝋠·𝋲
- Chinese
- 二千零一十八
- Chinese (financial)
- 貳仟零壹拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,018 = 4
- e — Euler's number (e)
- Digit 2,018 = 2
- φ — Golden ratio (φ)
- Digit 2,018 = 2
- √2 — Pythagoras's (√2)
- Digit 2,018 = 5
- ln 2 — Natural log of 2
- Digit 2,018 = 8
- γ — Euler-Mascheroni (γ)
- Digit 2,018 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2018, here are decompositions:
- 7 + 2011 = 2018
- 19 + 1999 = 2018
- 31 + 1987 = 2018
- 67 + 1951 = 2018
- 139 + 1879 = 2018
- 151 + 1867 = 2018
- 157 + 1861 = 2018
- 229 + 1789 = 2018
Showing the first eight; more decompositions exist.
UTF-8 encoding: DF A2 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.226.
- Address
- 0.0.7.226
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.226
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 2018 first appears in π at position 4,068 of the decimal expansion (the 4,068ordinal-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.