Number

319

319 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence Semiprime Smith Number Squarefree Year

Historical context — 319 AD

Calendar year

Year 319 (CCCXIX) was a common year starting on Thursday of the Julian calendar.

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Historical context — 319 BC

Calendar year

Year 319 BC was a year of the pre-Julian Roman calendar.

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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: Wednesday
January 1, 319
Ended on: Wednesday
December 31, 319
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 310s
310–319
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,707
1707 years before 2026.

In other calendars

Hebrew: 4079 / 4080 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Earth zodiac:Rabbit
Sexagenary cycle position 16 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 862 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 311 / 312 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 241 / 240 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 13
Digit product: 27
Digital root: 4
Palindrome: No
Bit width: 9 bits
Reversed: 913
Recamán's sequence: a(610) = 319
Square (n²): 101,761
Cube (n³): 32,461,759
Divisor count: 4
σ(n) — sum of divisors: 360
φ(n) — Euler's totient: 280
Sum of prime factors: 40

Primality

Prime factorization: 11 × 29

Nearest primes: 317 (−2) · 331 (+12)

Divisors & multiples

All divisors (4)

1 · 11 · 29 · 319

Aliquot sum (sum of proper divisors): 41

Factor pairs (a × b = 319)

1 × 319

11 × 29

First multiples

319 · 638 (double) · 957 · 1,276 · 1,595 · 1,914 · 2,233 · 2,552 · 2,871 · 3,190

Sums & aliquot sequence

As consecutive integers: 159 + 160 24 + 25 + … + 34 4 + 5 + … + 25

Aliquot sequence: 319 → 41 → 1 → 0 — terminates at zero

Representations

In words: three hundred nineteen
Ordinal: 319th
Roman numeral: CCCXIX
Binary: 100111111
Octal: 477
Hexadecimal: 0x13F
Base64: AT8=
One's complement: 65,216 (16-bit)

In other bases

ternary (3) 102211

quaternary (4) 10333

quinary (5) 2234

senary (6) 1251

septenary (7) 634

nonary (9) 384

undecimal (11) 270

duodecimal (12) 227

tridecimal (13) 1b7

tetradecimal (14) 18b

pentadecimal (15) 164

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): τιθʹ
Mayan (base 20): 𝋯·𝋳
Chinese: 三百一十九
Chinese (financial): 參佰壹拾玖

In other modern scripts

Eastern Arabic ٣١٩ Devanagari ३१९ Bengali ৩১৯ Tamil ௩௧௯ Thai ๓๑๙ Tibetan ༣༡༩ Khmer ៣១៩ Lao ໓໑໙ Burmese ၃၁၉

Digit at this position in famous constants

π — Pi (π): Digit 319 = 8
e — Euler's number (e): Digit 319 = 1
φ — Golden ratio (φ): Digit 319 = 1
√2 — Pythagoras's (√2): Digit 319 = 8
ln 2 — Natural log of 2: Digit 319 = 0
γ — Euler-Mascheroni (γ): Digit 319 = 9

Also seen as

Unicode codepoint

Latin Capital Letter L With Middle Dot

U+013F

Uppercase letter (Lu)

UTF-8 encoding: C4 BF (2 bytes).

Lookup U+013F on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00013F

RGB(0, 1, 63)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.63.

Address: 0.0.1.63
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.63

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

NANP area code 319

The number 319 is an active NANP area code (North American Numbering Plan).

Primary area: Cedar Rapids / Iowa City
Region: Iowa
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 319 ↗