number.wiki

Number

283

283 is a prime, odd, a calendar year.

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

Historical context — 283 AD

Calendar year

Year 283 (CCLXXXIII) 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 — 283 BC

Calendar year

Year 283 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, 283
Ended on: Monday
December 31, 283
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 280s
280–289
Century: 3rd century
201–300
Millennium: 1st millennium
1–1000
Years ago: 1,743
1743 years before 2026.

In other calendars

Hebrew: 4043 / 4044 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Water zodiac:Rabbit
Sexagenary cycle position 40 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 826 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 275 / 276 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 205 / 204 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 13
Digit product: 48
Digital root: 4
Palindrome: No
Bit width: 9 bits
Reversed: 382
Recamán's sequence: a(165) = 283
Square (n²): 80,089
Cube (n³): 22,665,187
Divisor count: 2
σ(n) — sum of divisors: 284
φ(n) — Euler's totient: 282

Primality

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

Divisors & multiples

All divisors (2)

1 · 283

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 283)

1 × 283

First multiples

283 · 566 (double) · 849 · 1,132 · 1,415 · 1,698 · 1,981 · 2,264 · 2,547 · 2,830

Sums & aliquot sequence

As consecutive integers: 141 + 142

Representations

In words: two hundred eighty-three
Ordinal: 283rd
Roman numeral: CCLXXXIII
Binary: 100011011
Octal: 433
Hexadecimal: 0x11B
Base64: ARs=
One's complement: 65,252 (16-bit)

In other bases

ternary (3) 101111

quaternary (4) 10123

quinary (5) 2113

senary (6) 1151

septenary (7) 553

nonary (9) 344

undecimal (11) 238

duodecimal (12) 1b7

tridecimal (13) 18a

tetradecimal (14) 163

pentadecimal (15) 13d

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): σπγʹ
Mayan (base 20): 𝋮·𝋣
Chinese: 二百八十三
Chinese (financial): 貳佰捌拾參

In other modern scripts

Eastern Arabic ٢٨٣ Devanagari २८३ Bengali ২৮৩ Tamil ௨௮௩ Thai ๒๘๓ Tibetan ༢༨༣ Khmer ២៨៣ Lao ໒໘໓ Burmese ၂၈၃

Digit at this position in famous constants

π — Pi (π): Digit 283 = 3
e — Euler's number (e): Digit 283 = 7
φ — Golden ratio (φ): Digit 283 = 4
√2 — Pythagoras's (√2): Digit 283 = 2
ln 2 — Natural log of 2: Digit 283 = 4
γ — Euler-Mascheroni (γ): Digit 283 = 6

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 281 (gap of 2)
Next prime: 293 (gap of 10)

Pair status: twin with 281.

Unicode codepoint

ě

Latin Small Letter E With Caron

U+011B

Lowercase letter (Ll)

UTF-8 encoding: C4 9B (2 bytes).

Lookup U+011B on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00011B

RGB(0, 1, 27)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.27.

Address: 0.0.1.27
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.27

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

NANP area code 283

The number 283 is an active NANP area code (North American Numbering Plan).

Primary area: Cincinnati
Region: Ohio
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 283 ↗