830
830 is a composite number, even, a calendar year.
Historical context — 830 AD
Calendar year
Year 830 (DCCCXXX) was a common year starting on Saturday of the Julian calendar.
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Historical context — 830 BC
Decade
This article concerns the period 839 BC – 830 BC.
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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, 830
- Ended on
-
Tuesday
December 31, 830
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
830s
830–839
- Century
-
9th century
801–900
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,196
1196 years before 2026.
In other calendars
- Hebrew
-
4590 / 4591 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
214 / 215 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Metal zodiac:Dog
Sexagenary cycle position 47 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1373 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
208 / 209 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
822 / 823 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
752 / 751 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 5 × 83
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eight hundred thirty
- Ordinal
- 830th
- Roman numeral
- DCCCXXX
- Binary
- 1100111110
- Octal
- 1476
- Hexadecimal
- 0x33E
- Base64
- Az4=
- One's complement
- 64,705 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆
- Greek (Milesian)
- ωλʹ
- Mayan (base 20)
- 𝋢·𝋡·𝋪
- Chinese
- 八百三十
- Chinese (financial)
- 捌佰參拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 830 = 2
- e — Euler's number (e)
- Digit 830 = 0
- φ — Golden ratio (φ)
- Digit 830 = 1
- √2 — Pythagoras's (√2)
- Digit 830 = 6
- ln 2 — Natural log of 2
- Digit 830 = 3
- γ — Euler-Mascheroni (γ)
- Digit 830 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 830, here are decompositions:
- 3 + 827 = 830
- 7 + 823 = 830
- 19 + 811 = 830
- 43 + 787 = 830
- 61 + 769 = 830
- 73 + 757 = 830
- 79 + 751 = 830
- 97 + 733 = 830
Showing the first eight; more decompositions exist.
UTF-8 encoding: CC BE (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.62.
- Address
- 0.0.3.62
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.3.62
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 830 is an active NANP area code (North American Numbering Plan).
- Primary area
- New Braunfels / Del Rio
- 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.