499
499 is a prime, odd, a calendar year.
499 (four hundred ninety-nine) is an odd 3-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in Roman numerals it is CDXCIX and in binary, 111110011.
Interestingness
Historical context — 499 AD
Calendar year
Year 499 (CDXCIX) was a common year starting on Friday of the Julian calendar.
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Historical context — 499 BC
Calendar year
Year 499 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
-
53
Long year: contains 53 ISO weeks.
- Started on
-
Thursday
January 1, 499
- Ended on
-
Thursday
December 31, 499
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
490s
490–499
- Century
-
5th century
401–500
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,527
1527 years before 2026.
In other calendars
- Hebrew
-
4259 / 4260 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Earth zodiac:Rabbit
Sexagenary cycle position 16 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1042 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
491 / 492 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
421 / 420 Saka
Indian national calendar; year starts in March.
Properties
Primality
499 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√499 = [22; (2, 1, 21, 1, 2, 44)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety-nine
- Ordinal
- 499th
- Roman numeral
- CDXCIX
- Binary
- 111110011
- Octal
- 763
- Hexadecimal
- 0x1F3
- Base64
- AfM=
- One's complement
- 65,036 (16-bit)
- Scientific notation
- 4.99 × 10²
- As a duration
- 499 s = 8 minutes, 19 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- υϟθʹ
- Mayan (base 20)
- 𝋡·𝋤·𝋳
- Chinese
- 四百九十九
- Chinese (financial)
- 肆佰玖拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 499 = 9
- e — Euler's number (e)
- Digit 499 = 3
- φ — Golden ratio (φ)
- Digit 499 = 7
- √2 — Pythagoras's (√2)
- Digit 499 = 7
- ln 2 — Natural log of 2
- Digit 499 = 6
- γ — Euler-Mascheroni (γ)
- Digit 499 = 2
Also seen as
UTF-8 encoding: C7 B3 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.243.
- Address
- 0.0.1.243
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.243
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 499 Hz is closest to:
- Concert pitch (A4 = 440 Hz): B4 (493.9 Hz, +18¢)
- Scientific pitch (C4 = 256 Hz): C5 (512 Hz, -45¢ — about midway to B4)
- Baroque pitch (A4 = 415 Hz): C5 (493.5 Hz, +19¢)
Related reading
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.