1,168
1,168 is a composite number, even, a calendar year.
Historical context — 1168 AD
Calendar year
Year 1168 (MCLXVIII) was a leap year starting on Monday of the Julian calendar.
Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →
Year facts
- Year type
-
Leap year
Divisible by 4 and not by 100; February has 29 days.
- Days in year
- 366
- ISO weeks
- 52
- Started on
-
Monday
January 1, 1168
- Ended on
-
Tuesday
December 31, 1168
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1160s
1160–1169
- Century
-
12th century
1101–1200
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
858
858 years before 2026.
In other calendars
- Hebrew
-
4928 / 4929 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
563 / 564 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Rat
Sexagenary cycle position 25 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1711 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
546 / 547 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1160 / 1161 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1090 / 1089 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 16
- Digit product
- 48
- Digital root
- 7
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,611
- Flips to (rotate 180°)
- 8,911
- Recamán's sequence
- a(1,836) = 1,168
- Square (n²)
- 1,364,224
- Cube (n³)
- 1,593,413,632
- Divisor count
- 10
- σ(n) — sum of divisors
- 2,294
- φ(n) — Euler's totient
- 576
- Sum of prime factors
- 81
Primality
Prime factorization: 2 4 × 73
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand one hundred sixty-eight
- Ordinal
- 1168th
- Roman numeral
- MCLXVIII
- Binary
- 10010010000
- Octal
- 2220
- Hexadecimal
- 0x490
- Base64
- BJA=
- One's complement
- 64,367 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αρξηʹ
- Mayan (base 20)
- 𝋢·𝋲·𝋨
- Chinese
- 一千一百六十八
- Chinese (financial)
- 壹仟壹佰陸拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,168 = 9
- e — Euler's number (e)
- Digit 1,168 = 7
- φ — Golden ratio (φ)
- Digit 1,168 = 5
- √2 — Pythagoras's (√2)
- Digit 1,168 = 5
- ln 2 — Natural log of 2
- Digit 1,168 = 3
- γ — Euler-Mascheroni (γ)
- Digit 1,168 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1168, here are decompositions:
- 5 + 1163 = 1168
- 17 + 1151 = 1168
- 59 + 1109 = 1168
- 71 + 1097 = 1168
- 107 + 1061 = 1168
- 137 + 1031 = 1168
- 149 + 1019 = 1168
- 191 + 977 = 1168
Showing the first eight; more decompositions exist.
UTF-8 encoding: D2 90 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.144.
- Address
- 0.0.4.144
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.144
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1168 first appears in π at position 1,129 of the decimal expansion (the 1,129ordinal-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.