1,426
1,426 is a composite number, even, a calendar year.
Historical context — 1426 AD
Calendar year
Year 1426 (MCDXXVI) was a common year starting on Tuesday 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
-
Sunday
January 1, 1426
- Ended on
-
Sunday
December 31, 1426
- 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
-
600
600 years before 2026.
In other calendars
- Hebrew
-
5186 / 5187 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
829 / 830 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Horse
Sexagenary cycle position 43 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1969 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
804 / 805 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1418 / 1419 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1348 / 1347 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 13
- Digit product
- 48
- Digital root
- 4
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,241
- Recamán's sequence
- a(1,708) = 1,426
- Square (n²)
- 2,033,476
- Cube (n³)
- 2,899,736,776
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,304
- φ(n) — Euler's totient
- 660
- Sum of prime factors
- 56
Primality
Prime factorization: 2 × 23 × 31
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand four hundred twenty-six
- Ordinal
- 1426th
- Roman numeral
- MCDXXVI
- Binary
- 10110010010
- Octal
- 2622
- Hexadecimal
- 0x592
- Base64
- BZI=
- One's complement
- 64,109 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αυκϛʹ
- Mayan (base 20)
- 𝋣·𝋫·𝋦
- Chinese
- 一千四百二十六
- Chinese (financial)
- 壹仟肆佰貳拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,426 = 1
- e — Euler's number (e)
- Digit 1,426 = 4
- φ — Golden ratio (φ)
- Digit 1,426 = 0
- √2 — Pythagoras's (√2)
- Digit 1,426 = 1
- ln 2 — Natural log of 2
- Digit 1,426 = 5
- γ — Euler-Mascheroni (γ)
- Digit 1,426 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1426, here are decompositions:
- 3 + 1423 = 1426
- 17 + 1409 = 1426
- 53 + 1373 = 1426
- 59 + 1367 = 1426
- 107 + 1319 = 1426
- 137 + 1289 = 1426
- 149 + 1277 = 1426
- 167 + 1259 = 1426
Showing the first eight; more decompositions exist.
UTF-8 encoding: D6 92 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.146.
- Address
- 0.0.5.146
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.146
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1426 first appears in π at position 2,971 of the decimal expansion (the 2,971ordinal-suffix:st 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.