238
238 is a composite number, even, a calendar year.
Historical context — 238 AD
Calendar year
Year 238 (CCXXXVIII) was a common year starting on Monday of the Julian calendar.
Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →
Historical context — 238 BC
Calendar year
Year 238 BC was a year of the pre-Julian Roman calendar.
Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →
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
-
Monday
January 1, 238
- Ended on
-
Monday
December 31, 238
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
230s
230–239
- Century
-
3rd century
201–300
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,788
1788 years before 2026.
In other calendars
- Hebrew
-
3998 / 3999 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
-
781 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
230 / 231 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
160 / 159 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 7 × 17
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two hundred thirty-eight
- Ordinal
- 238th
- Roman numeral
- CCXXXVIII
- Binary
- 11101110
- Octal
- 356
- Hexadecimal
- 0xEE
- Base64
- 7g==
- One's complement
- 17 (8-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- σληʹ
- Mayan (base 20)
- 𝋫·𝋲
- Chinese
- 二百三十八
- Chinese (financial)
- 貳佰參拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 238 = 3
- e — Euler's number (e)
- Digit 238 = 9
- φ — Golden ratio (φ)
- Digit 238 = 6
- √2 — Pythagoras's (√2)
- Digit 238 = 7
- ln 2 — Natural log of 2
- Digit 238 = 5
- γ — Euler-Mascheroni (γ)
- Digit 238 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 238, here are decompositions:
- 5 + 233 = 238
- 11 + 227 = 238
- 41 + 197 = 238
- 47 + 191 = 238
- 59 + 179 = 238
- 71 + 167 = 238
- 89 + 149 = 238
- 101 + 137 = 238
Showing the first eight; more decompositions exist.
UTF-8 encoding: C3 AE (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.238.
- Address
- 0.0.0.238
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.0.238
Unspecified address (0.0.0.0/8) — "this network" placeholder.