430
430 is a composite number, even, a calendar year.
Historical context — 430 AD
Calendar year
Year 430 (CDXXX) was a common year starting on Wednesday of the Julian calendar.
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Historical context — 430 BC
Calendar year
Year 430 BC was a year of the pre-Julian Roman 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, 430
- Ended on
-
Tuesday
December 31, 430
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
430s
430–439
- Century
-
5th century
401–500
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,596
1596 years before 2026.
In other calendars
- Hebrew
-
4190 / 4191 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Metal zodiac:Horse
Sexagenary cycle position 7 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
973 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
422 / 423 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
352 / 351 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 5 × 43
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- four hundred thirty
- Ordinal
- 430th
- Roman numeral
- CDXXX
- Binary
- 110101110
- Octal
- 656
- Hexadecimal
- 0x1AE
- Base64
- Aa4=
- One's complement
- 65,105 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓎆𓎆𓎆
- Greek (Milesian)
- υλʹ
- Mayan (base 20)
- 𝋡·𝋡·𝋪
- Chinese
- 四百三十
- Chinese (financial)
- 肆佰參拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 430 = 7
- e — Euler's number (e)
- Digit 430 = 1
- φ — Golden ratio (φ)
- Digit 430 = 1
- √2 — Pythagoras's (√2)
- Digit 430 = 7
- ln 2 — Natural log of 2
- Digit 430 = 3
- γ — Euler-Mascheroni (γ)
- Digit 430 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 430, here are decompositions:
- 11 + 419 = 430
- 29 + 401 = 430
- 41 + 389 = 430
- 47 + 383 = 430
- 71 + 359 = 430
- 83 + 347 = 430
- 113 + 317 = 430
- 137 + 293 = 430
Showing the first eight; more decompositions exist.
UTF-8 encoding: C6 AE (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.174.
- Address
- 0.0.1.174
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.174
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 430 is an active NANP area code (North American Numbering Plan).
- Primary area
- Tyler / Texarkana
- Region
- Texas
- Country
- United States
Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.