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Number

226

226 is a composite number, even, a calendar year.

Deficient Number Evil Number Happy Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 226 AD

Calendar year

Year 226 (CCXXVI) was a common year starting on Sunday of the Julian calendar.

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Historical context — 226 BC

Calendar year

Year 226 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
Sunday
January 1, 226
Ended on
Sunday
December 31, 226
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
1,800
1800 years before 2026.

In other calendars

Hebrew
3986 / 3987 AM
Rosh Hashanah falls in September/October.
Chinese
Year of the zodiac:Fire zodiac:Horse
Sexagenary cycle position 43 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
769 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian
218 / 219 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
148 / 147 Saka
Indian national calendar; year starts in March.

Properties

Parity
Even
Digit count
3
Digit sum
10
Digit product
24
Digital root
1
Palindrome
No
Bit width
8 bits
Reversed
622
Recamán's sequence
a(71) = 226
Square (n²)
51,076
Cube (n³)
11,543,176
Divisor count
4
σ(n) — sum of divisors
342
φ(n) — Euler's totient
112
Sum of prime factors
115

Primality

Prime factorization: 2 × 113

Nearest primes: 223 (−3) · 227 (+1)

Divisors & multiples

All divisors (4)
1 · 2 · 113 (half) · 226
Aliquot sum (sum of proper divisors): 116
Factor pairs (a × b = 226)
1 × 226
2 × 113
First multiples
226 · 452 (double) · 678 · 904 · 1,130 · 1,356 · 1,582 · 1,808 · 2,034 · 2,260

Sums & aliquot sequence

As a sum of two squares: 1² + 15²
As consecutive integers: 55 + 56 + 57 + 58
Aliquot sequence: 226 116 94 50 43 1 0 — terminates at zero

Representations

In words
two hundred twenty-six
Ordinal
226th
Roman numeral
CCXXVI
Binary
11100010
Octal
342
Hexadecimal
0xE2
Base64
4g==
One's complement
29 (8-bit)
In other bases
ternary (3) 22101
quaternary (4) 3202
quinary (5) 1401
senary (6) 1014
septenary (7) 442
nonary (9) 271
undecimal (11) 196
duodecimal (12) 16a
tridecimal (13) 145
tetradecimal (14) 122
pentadecimal (15) 101

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
σκϛʹ
Mayan (base 20)
𝋫·𝋦
Chinese
二百二十六
Chinese (financial)
貳佰貳拾陸
In other modern scripts
Eastern Arabic ٢٢٦ Devanagari २२६ Bengali ২২৬ Tamil ௨௨௬ Thai ๒๒๖ Tibetan ༢༢༦ Khmer ២២៦ Lao ໒໒໖ Burmese ၂၂၆

Digit at this position in famous constants

π — Pi (π)
Digit 226 = 5
e — Euler's number (e)
Digit 226 = 9
φ — Golden ratio (φ)
Digit 226 = 7
√2 — Pythagoras's (√2)
Digit 226 = 6
ln 2 — Natural log of 2
Digit 226 = 2
γ — Euler-Mascheroni (γ)
Digit 226 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 226, here are decompositions:

  • 3 + 223 = 226
  • 29 + 197 = 226
  • 47 + 179 = 226
  • 53 + 173 = 226
  • 59 + 167 = 226
  • 89 + 137 = 226
  • 113 + 113 = 226
Unicode codepoint
â
Latin Small Letter A With Circumflex
U+00E2
Lowercase letter (Ll)

UTF-8 encoding: C3 A2 (2 bytes).

Hex color
#0000E2
RGB(0, 0, 226)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.226.

Address
0.0.0.226
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.0.226

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

NANP area code 226

The number 226 is an active NANP area code (North American Numbering Plan).

Primary area
Southwestern Ontario
Region
Ontario
Country
Canada

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.