248
248 is a composite number, even, a calendar year.
Historical context — 248 AD
Calendar year
Year 248 (CCXLVIII) was a leap year starting on Saturday of the Julian calendar.
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Historical context — 248 BC
Calendar year
Year 248 BC was a year of the pre-Julian Roman calendar.
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Year facts
- Year type
-
Leap year
Divisible by 4 and not by 100; February has 29 days.
- Days in year
- 366
- ISO weeks
- 52
- Started on
-
Saturday
January 1, 248
- Ended on
-
Sunday
December 31, 248
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
240s
240–249
- Century
-
3rd century
201–300
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,778
1778 years before 2026.
In other calendars
- Hebrew
-
4008 / 4009 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Earth zodiac:Dragon
Sexagenary cycle position 5 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
791 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
240 / 241 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
170 / 169 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 3 × 31
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two hundred forty-eight
- Ordinal
- 248th
- Roman numeral
- CCXLVIII
- Binary
- 11111000
- Octal
- 370
- Hexadecimal
- 0xF8
- Base64
- +A==
- One's complement
- 7 (8-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- σμηʹ
- Mayan (base 20)
- 𝋬·𝋨
- Chinese
- 二百四十八
- Chinese (financial)
- 貳佰肆拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 248 = 9
- e — Euler's number (e)
- Digit 248 = 6
- φ — Golden ratio (φ)
- Digit 248 = 2
- √2 — Pythagoras's (√2)
- Digit 248 = 1
- ln 2 — Natural log of 2
- Digit 248 = 1
- γ — Euler-Mascheroni (γ)
- Digit 248 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 248, here are decompositions:
- 7 + 241 = 248
- 19 + 229 = 248
- 37 + 211 = 248
- 67 + 181 = 248
- 97 + 151 = 248
- 109 + 139 = 248
UTF-8 encoding: C3 B8 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.248.
- Address
- 0.0.0.248
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.0.248
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 248 is an active NANP area code (North American Numbering Plan).
- Primary area
- Northern suburbs of Detroit
- Region
- Michigan
- 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.