1,172
1,172 is a composite number, even, a calendar year.
Historical context — 1172 AD
Calendar year
Year 1172 (MCLXXII) was a leap year starting on Saturday of the Julian calendar.
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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
-
Saturday
January 1, 1172
- Ended on
-
Sunday
December 31, 1172
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1170s
1170–1179
- Century
-
12th century
1101–1200
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
854
854 years before 2026.
In other calendars
- Hebrew
-
4932 / 4933 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
567 / 568 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Dragon
Sexagenary cycle position 29 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1715 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
550 / 551 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1164 / 1165 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1094 / 1093 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 2 × 293
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand one hundred seventy-two
- Ordinal
- 1172nd
- Roman numeral
- MCLXXII
- Binary
- 10010010100
- Octal
- 2224
- Hexadecimal
- 0x494
- Base64
- BJQ=
- One's complement
- 64,363 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵αροβʹ
- Mayan (base 20)
- 𝋢·𝋲·𝋬
- Chinese
- 一千一百七十二
- Chinese (financial)
- 壹仟壹佰柒拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,172 = 0
- e — Euler's number (e)
- Digit 1,172 = 4
- φ — Golden ratio (φ)
- Digit 1,172 = 9
- √2 — Pythagoras's (√2)
- Digit 1,172 = 8
- ln 2 — Natural log of 2
- Digit 1,172 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,172 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1172, here are decompositions:
- 19 + 1153 = 1172
- 43 + 1129 = 1172
- 79 + 1093 = 1172
- 103 + 1069 = 1172
- 109 + 1063 = 1172
- 139 + 1033 = 1172
- 151 + 1021 = 1172
- 163 + 1009 = 1172
Showing the first eight; more decompositions exist.
UTF-8 encoding: D2 94 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.148.
- Address
- 0.0.4.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.148
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1172 first appears in π at position 6,804 of the decimal expansion (the 6,804ordinal-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.