1,322
1,322 is a composite number, even, a calendar year.
1,322 (one thousand three hundred twenty-two) is an even 4-digit number. It is a composite number with 4 divisors, and factors as 2 × 661. Written other ways, in Roman numerals it is MCCCXXII and in binary, 10100101010.
Interestingness
Historical context — 1322 AD
Calendar year
Year 1322 (MCCCXXII) was a common year starting on Friday of the Julian calendar.
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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
-
53
Long year: contains 53 ISO weeks.
- Started on
-
Thursday
January 1, 1322
- Ended on
-
Thursday
December 31, 1322
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
1320s
1320–1329
- Century
-
14th century
1301–1400
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
704
704 years before 2026.
In other calendars
- Hebrew
-
5082 / 5083 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
721 / 722 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Dog
Sexagenary cycle position 59 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1865 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
700 / 701 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1314 / 1315 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1244 / 1243 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 661
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,322 = [36; (2, 1, 3, 1, 1, 1, 1, 3, 1, 2, 72)]
Period length 11 — the block in parentheses repeats forever.
Representations
- In words
- one thousand three hundred twenty-two
- Ordinal
- 1322nd
- Roman numeral
- MCCCXXII
- Binary
- 10100101010
- Octal
- 2452
- Hexadecimal
- 0x52A
- Base64
- BSo=
- One's complement
- 64,213 (16-bit)
- Scientific notation
- 1.322 × 10³
- As a duration
- 1,322 s = 22 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ατκβʹ
- Mayan (base 20)
- 𝋣·𝋦·𝋢
- Chinese
- 一千三百二十二
- Chinese (financial)
- 壹仟參佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,322 = 7
- e — Euler's number (e)
- Digit 1,322 = 0
- φ — Golden ratio (φ)
- Digit 1,322 = 1
- √2 — Pythagoras's (√2)
- Digit 1,322 = 9
- ln 2 — Natural log of 2
- Digit 1,322 = 7
- γ — Euler-Mascheroni (γ)
- Digit 1,322 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1322, here are decompositions:
- 3 + 1319 = 1322
- 19 + 1303 = 1322
- 31 + 1291 = 1322
- 43 + 1279 = 1322
- 73 + 1249 = 1322
- 109 + 1213 = 1322
- 151 + 1171 = 1322
- 193 + 1129 = 1322
Showing the first eight; more decompositions exist.
UTF-8 encoding: D4 AA (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.42.
- Address
- 0.0.5.42
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.42
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,322 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E6 (1318.5 Hz, +5¢)
- Scientific pitch (C4 = 256 Hz): E6 (1290.2 Hz, +42¢)
- Baroque pitch (A4 = 415 Hz): F6 (1317.5 Hz, +6¢)
The digit sequence 1322 first appears in π at position 32,779 of the decimal expansion (the 32,779ordinal-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.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.