1,422
1,422 is a composite number, even, a calendar year.
Historical context — 1422 AD
Calendar year
Year 1422 (MCDXXII) was a common year starting on Thursday 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
- 52
- Started on
-
Tuesday
January 1, 1422
- Ended on
-
Tuesday
December 31, 1422
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1420s
1420–1429
- Century
-
15th century
1401–1500
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
604
604 years before 2026.
In other calendars
- Hebrew
-
5182 / 5183 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
824 / 826 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Tiger
Sexagenary cycle position 39 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1965 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
800 / 801 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1414 / 1415 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1344 / 1343 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 9
- Digit product
- 16
- Digital root
- 9
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 2,241
- Recamán's sequence
- a(512) = 1,422
- Square (n²)
- 2,022,084
- Cube (n³)
- 2,875,403,448
- Divisor count
- 12
- σ(n) — sum of divisors
- 3,120
- φ(n) — Euler's totient
- 468
- Sum of prime factors
- 87
Primality
Prime factorization: 2 × 3 2 × 79
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand four hundred twenty-two
- Ordinal
- 1422nd
- Roman numeral
- MCDXXII
- Binary
- 10110001110
- Octal
- 2616
- Hexadecimal
- 0x58E
- Base64
- BY4=
- One's complement
- 64,113 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵αυκβʹ
- Mayan (base 20)
- 𝋣·𝋫·𝋢
- Chinese
- 一千四百二十二
- Chinese (financial)
- 壹仟肆佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,422 = 2
- e — Euler's number (e)
- Digit 1,422 = 3
- φ — Golden ratio (φ)
- Digit 1,422 = 7
- √2 — Pythagoras's (√2)
- Digit 1,422 = 6
- ln 2 — Natural log of 2
- Digit 1,422 = 3
- γ — Euler-Mascheroni (γ)
- Digit 1,422 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1422, here are decompositions:
- 13 + 1409 = 1422
- 23 + 1399 = 1422
- 41 + 1381 = 1422
- 61 + 1361 = 1422
- 101 + 1321 = 1422
- 103 + 1319 = 1422
- 131 + 1291 = 1422
- 139 + 1283 = 1422
Showing the first eight; more decompositions exist.
UTF-8 encoding: D6 8E (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.142.
- Address
- 0.0.5.142
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.142
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1422 first appears in π at position 4,606 of the decimal expansion (the 4,606ordinal-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.