469
469 is a composite number, odd, a calendar year.
469 (four hundred sixty-nine) is an odd 3-digit number. It is a composite number with 4 divisors, and factors as 7 × 67. Written other ways, in Roman numerals it is CDLXIX and in binary, 111010101.
Interestingness
Historical context — 469 AD
Calendar year
Year 469 (CDLXIX) was a common year starting on Wednesday of the Julian calendar.
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Historical context — 469 BC
Calendar year
Year 469 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, 469
- Ended on
-
Tuesday
December 31, 469
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
460s
460–469
- Century
-
5th century
401–500
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,557
1557 years before 2026.
In other calendars
- Hebrew
-
4229 / 4230 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Earth zodiac:Rooster
Sexagenary cycle position 46 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1012 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
461 / 462 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
391 / 390 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 7 × 67
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√469 = [21; (1, 1, 1, 10, 6, 10, 1, 1, 1, 42)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- four hundred sixty-nine
- Ordinal
- 469th
- Roman numeral
- CDLXIX
- Binary
- 111010101
- Octal
- 725
- Hexadecimal
- 0x1D5
- Base64
- AdU=
- One's complement
- 65,066 (16-bit)
- Scientific notation
- 4.69 × 10²
- As a duration
- 469 s = 7 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- υξθʹ
- Mayan (base 20)
- 𝋡·𝋣·𝋩
- Chinese
- 四百六十九
- Chinese (financial)
- 肆佰陸拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 469 = 7
- e — Euler's number (e)
- Digit 469 = 6
- φ — Golden ratio (φ)
- Digit 469 = 5
- √2 — Pythagoras's (√2)
- Digit 469 = 3
- ln 2 — Natural log of 2
- Digit 469 = 3
- γ — Euler-Mascheroni (γ)
- Digit 469 = 1
Also seen as
UTF-8 encoding: C7 95 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.213.
- Address
- 0.0.1.213
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.213
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 469 is an active NANP area code (North American Numbering Plan).
- Primary area
- Dallas
- 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.
Heard as a frequency, 469 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A♯4 (466.2 Hz, +11¢)
- Scientific pitch (C4 = 256 Hz): A♯4 (456.1 Hz, +48¢ — about midway to B4)
- Baroque pitch (A4 = 415 Hz): B4 (465.8 Hz, +12¢)
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.