478
478 is a composite number, even, a calendar year.
Historical context — 478 AD
Calendar year
Year 478 (CDLXXVIII) was a common year starting on Sunday of the Julian calendar.
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Historical context — 478 BC
Calendar year
Year 478 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
-
Saturday
January 1, 478
- Ended on
-
Saturday
December 31, 478
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
470s
470–479
- Century
-
5th century
401–500
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,548
1548 years before 2026.
In other calendars
- Hebrew
-
4238 / 4239 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Earth zodiac:Horse
Sexagenary cycle position 55 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1021 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
470 / 471 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
400 / 399 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 239
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- four hundred seventy-eight
- Ordinal
- 478th
- Roman numeral
- CDLXXVIII
- Binary
- 111011110
- Octal
- 736
- Hexadecimal
- 0x1DE
- Base64
- Ad4=
- One's complement
- 65,057 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- υοηʹ
- Mayan (base 20)
- 𝋡·𝋣·𝋲
- Chinese
- 四百七十八
- Chinese (financial)
- 肆佰柒拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 478 = 2
- e — Euler's number (e)
- Digit 478 = 5
- φ — Golden ratio (φ)
- Digit 478 = 9
- √2 — Pythagoras's (√2)
- Digit 478 = 8
- ln 2 — Natural log of 2
- Digit 478 = 4
- γ — Euler-Mascheroni (γ)
- Digit 478 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 478, here are decompositions:
- 11 + 467 = 478
- 17 + 461 = 478
- 29 + 449 = 478
- 47 + 431 = 478
- 59 + 419 = 478
- 89 + 389 = 478
- 131 + 347 = 478
- 167 + 311 = 478
Showing the first eight; more decompositions exist.
UTF-8 encoding: C7 9E (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.222.
- Address
- 0.0.1.222
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.222
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 478 is an active NANP area code (North American Numbering Plan).
- Primary area
- Macon
- Region
- Georgia
- 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.