Number

519

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

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

Historical context — 519 AD

Calendar year

Year 519 (DXIX) was a common year starting on Tuesday of the Julian calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

Historical context — 519 BC

Calendar year

The year 519 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, 519
Ended on: Sunday
December 31, 519
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 510s
510–519
Century: 6th century
501–600
Millennium: 1st millennium
1–1000
Years ago: 1,507
1507 years before 2026.

In other calendars

Hebrew: 4279 / 4280 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Earth zodiac:Pig
Sexagenary cycle position 36 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1062 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 511 / 512 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 441 / 440 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 15
Digit product: 45
Digital root: 6
Palindrome: No
Bit width: 10 bits
Reversed: 915
Recamán's sequence: a(1,221) = 519
Square (n²): 269,361
Cube (n³): 139,798,359
Divisor count: 4
σ(n) — sum of divisors: 696
φ(n) — Euler's totient: 344
Sum of prime factors: 176

Primality

Prime factorization: 3 × 173

Nearest primes: 509 (−10) · 521 (+2)

Divisors & multiples

All divisors (4)

1 · 3 · 173 · 519

Aliquot sum (sum of proper divisors): 177

Factor pairs (a × b = 519)

1 × 519

3 × 173

First multiples

519 · 1,038 (double) · 1,557 · 2,076 · 2,595 · 3,114 · 3,633 · 4,152 · 4,671 · 5,190

Sums & aliquot sequence

As consecutive integers: 259 + 260 172 + 173 + 174 84 + 85 + 86 + 87 + 88 + 89

Aliquot sequence: 519 → 177 → 63 → 41 → 1 → 0 — terminates at zero

Representations

In words: five hundred nineteen
Ordinal: 519th
Roman numeral: DXIX
Binary: 1000000111
Octal: 1007
Hexadecimal: 0x207
Base64: Agc=
One's complement: 65,016 (16-bit)

In other bases

ternary (3) 201020

quaternary (4) 20013

quinary (5) 4034

senary (6) 2223

septenary (7) 1341

nonary (9) 636

undecimal (11) 432

duodecimal (12) 373

tridecimal (13) 30c

tetradecimal (14) 291

pentadecimal (15) 249

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): φιθʹ
Mayan (base 20): 𝋡·𝋥·𝋳
Chinese: 五百一十九
Chinese (financial): 伍佰壹拾玖

In other modern scripts

Eastern Arabic ٥١٩ Devanagari ५१९ Bengali ৫১৯ Tamil ௫௧௯ Thai ๕๑๙ Tibetan ༥༡༩ Khmer ៥១៩ Lao ໕໑໙ Burmese ၅၁၉

Digit at this position in famous constants

π — Pi (π): Digit 519 = 4
e — Euler's number (e): Digit 519 = 2
φ — Golden ratio (φ): Digit 519 = 9
√2 — Pythagoras's (√2): Digit 519 = 9
ln 2 — Natural log of 2: Digit 519 = 0
γ — Euler-Mascheroni (γ): Digit 519 = 6

Also seen as

Unicode codepoint

Latin Small Letter E With Inverted Breve

U+0207

Lowercase letter (Ll)

UTF-8 encoding: C8 87 (2 bytes).

Lookup U+0207 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000207

RGB(0, 2, 7)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.7.

Address: 0.0.2.7
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.7

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

NANP area code 519

The number 519 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.

Look up area code 519 ↗