Number

227

227 is a prime, odd, a calendar year.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Odious Number Pernicious Number Prime Recamán's Sequence Safe Prime Sexy Prime Squarefree Twin Prime Year

Historical context — 227 AD

Calendar year

Year 227 (CCXXVII) 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 — 227 BC

Calendar year

Year 227 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, 227
Ended on: Monday
December 31, 227
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 220s
220–229
Century: 3rd century
201–300
Millennium: 1st millennium
1–1000
Years ago: 1,799
1799 years before 2026.

In other calendars

Hebrew: 3987 / 3988 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Goat
Sexagenary cycle position 44 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 770 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 219 / 220 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 149 / 148 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 11
Digit product: 28
Digital root: 2
Palindrome: No
Bit width: 8 bits
Reversed: 722
Recamán's sequence: a(73) = 227
Square (n²): 51,529
Cube (n³): 11,697,083
Divisor count: 2
σ(n) — sum of divisors: 228
φ(n) — Euler's totient: 226

Primality

227 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 227

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 227)

1 × 227

First multiples

227 · 454 (double) · 681 · 908 · 1,135 · 1,362 · 1,589 · 1,816 · 2,043 · 2,270

Sums & aliquot sequence

As consecutive integers: 113 + 114

Representations

In words: two hundred twenty-seven
Ordinal: 227th
Roman numeral: CCXXVII
Binary: 11100011
Octal: 343
Hexadecimal: 0xE3
Base64: 4w==
One's complement: 28 (8-bit)

In other bases

ternary (3) 22102

quaternary (4) 3203

quinary (5) 1402

senary (6) 1015

septenary (7) 443

nonary (9) 272

undecimal (11) 197

duodecimal (12) 16b

tridecimal (13) 146

tetradecimal (14) 123

pentadecimal (15) 102

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): σκζʹ
Mayan (base 20): 𝋫·𝋧
Chinese: 二百二十七
Chinese (financial): 貳佰貳拾柒

In other modern scripts

Eastern Arabic ٢٢٧ Devanagari २२७ Bengali ২২৭ Tamil ௨௨௭ Thai ๒๒๗ Tibetan ༢༢༧ Khmer ២២៧ Lao ໒໒໗ Burmese ၂၂၇

Digit at this position in famous constants

π — Pi (π): Digit 227 = 6
e — Euler's number (e): Digit 227 = 9
φ — Golden ratio (φ): Digit 227 = 0
√2 — Pythagoras's (√2): Digit 227 = 8
ln 2 — Natural log of 2: Digit 227 = 6
γ — Euler-Mascheroni (γ): Digit 227 = 1

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 223 (gap of 4)
Next prime: 229 (gap of 2)

Pair status: twin with 229, cousin with 223.

Unicode codepoint

Latin Small Letter A With Tilde

U+00E3

Lowercase letter (Ll)

UTF-8 encoding: C3 A3 (2 bytes).

Lookup U+00E3 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0000E3

RGB(0, 0, 227)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.227.

Address: 0.0.0.227
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.0.227

Unspecified address (0.0.0.0/8) — "this network" placeholder.

NANP area code 227

The number 227 is an active NANP area code (North American Numbering Plan).

Primary area: Hagerstown
Region: Maryland
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.

Look up area code 227 ↗