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Number

1,319

1,319 is a prime, odd, a calendar year.

Arithmetic Number Chen Prime Deficient Number Evil Number Prime Recamán's Sequence Safe Prime Squarefree Twin Prime Year

Historical context — 1319 AD

Calendar year

Year 1319 (MCCCXIX) was a common year starting on Monday of the Julian 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
Sunday
January 1, 1319
Ended on
Sunday
December 31, 1319
Friday the 13ths
2
2 Friday the 13ths this year.
Decade
1310s
1310–1319
Century
14th century
1301–1400
Millennium
2nd millennium
1001–2000
Years ago
707
707 years before 2026.

In other calendars

Hebrew
5079 / 5080 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
718 / 719 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Earth zodiac:Goat
Sexagenary cycle position 56 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1862 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
697 / 698 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1311 / 1312 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1241 / 1240 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
14
Digit product
27
Digital root
5
Palindrome
No
Bit width
11 bits
Reversed
9,131
Recamán's sequence
a(4,125) = 1,319
Square (n²)
1,739,761
Cube (n³)
2,294,744,759
Divisor count
2
σ(n) — sum of divisors
1,320
φ(n) — Euler's totient
1,318

Primality

1,319 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1319
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,319)
1 × 1319
First multiples
1,319 · 2,638 (double) · 3,957 · 5,276 · 6,595 · 7,914 · 9,233 · 10,552 · 11,871 · 13,190

Sums & aliquot sequence

As consecutive integers: 659 + 660

Representations

In words
one thousand three hundred nineteen
Ordinal
1319th
Roman numeral
MCCCXIX
Binary
10100100111
Octal
2447
Hexadecimal
0x527
Base64
BSc=
One's complement
64,216 (16-bit)
In other bases
ternary (3) 1210212
quaternary (4) 110213
quinary (5) 20234
senary (6) 10035
septenary (7) 3563
nonary (9) 1725
undecimal (11) a9a
duodecimal (12) 91b
tridecimal (13) 7a6
tetradecimal (14) 6a3
pentadecimal (15) 5ce

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ατιθʹ
Mayan (base 20)
𝋣·𝋥·𝋳
Chinese
一千三百一十九
Chinese (financial)
壹仟參佰壹拾玖
In other modern scripts
Eastern Arabic ١٣١٩ Devanagari १३१९ Bengali ১৩১৯ Tamil ௧௩௧௯ Thai ๑๓๑๙ Tibetan ༡༣༡༩ Khmer ១៣១៩ Lao ໑໓໑໙ Burmese ၁၃၁၉

Digit at this position in famous constants

π — Pi (π)
Digit 1,319 = 1
e — Euler's number (e)
Digit 1,319 = 9
φ — Golden ratio (φ)
Digit 1,319 = 5
√2 — Pythagoras's (√2)
Digit 1,319 = 8
ln 2 — Natural log of 2
Digit 1,319 = 0
γ — Euler-Mascheroni (γ)
Digit 1,319 = 7

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 1,307 (gap of 12)
  • Next prime: 1,321 (gap of 2)

Pair status: twin with 1321.

Unicode codepoint
ԧ
Cyrillic Small Letter Shha With Descender
U+0527
Lowercase letter (Ll)

UTF-8 encoding: D4 A7 (2 bytes).

Hex color
#000527
RGB(0, 5, 39)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.39.

Address
0.0.5.39
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.5.39

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

Position in π

The digit sequence 1319 first appears in π at position 21,020 of the decimal expansion (the 21,020ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.