Number

779

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

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

Historical context — 779 AD

Calendar year

Year 779 (DCCLXXIX) was a common year starting on Friday of the Julian calendar.

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Historical context — 779 BC

Decade

This article concerns the period 779 BC – 770 BC.

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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: Monday
January 1, 779
Ended on: Monday
December 31, 779
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 770s
770–779
Century: 8th century
701–800
Millennium: 1st millennium
1–1000
Years ago: 1,247
1247 years before 2026.

In other calendars

Hebrew: 4539 / 4540 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 162 / 163 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: 1322 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 157 / 158 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 771 / 772 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 701 / 700 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 23
Digit product: 441
Digital root: 5
Palindrome: No
Bit width: 10 bits
Reversed: 977
Recamán's sequence: a(873) = 779
Square (n²): 606,841
Cube (n³): 472,729,139
Divisor count: 4
σ(n) — sum of divisors: 840
φ(n) — Euler's totient: 720
Sum of prime factors: 60

Primality

Prime factorization: 19 × 41

Nearest primes: 773 (−6) · 787 (+8)

Divisors & multiples

All divisors (4)

1 · 19 · 41 · 779

Aliquot sum (sum of proper divisors): 61

Factor pairs (a × b = 779)

1 × 779

19 × 41

First multiples

779 · 1,558 (double) · 2,337 · 3,116 · 3,895 · 4,674 · 5,453 · 6,232 · 7,011 · 7,790

Sums & aliquot sequence

As consecutive integers: 389 + 390 32 + 33 + … + 50 2 + 3 + … + 39

Aliquot sequence: 779 → 61 → 1 → 0 — terminates at zero

Representations

In words: seven hundred seventy-nine
Ordinal: 779th
Roman numeral: DCCLXXIX
Binary: 1100001011
Octal: 1413
Hexadecimal: 0x30B
Base64: Aws=
One's complement: 64,756 (16-bit)

In other bases

ternary (3) 1001212

quaternary (4) 30023

quinary (5) 11104

senary (6) 3335

septenary (7) 2162

nonary (9) 1055

undecimal (11) 649

duodecimal (12) 54b

tridecimal (13) 47c

tetradecimal (14) 3d9

pentadecimal (15) 36e

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ψοθʹ
Mayan (base 20): 𝋡·𝋲·𝋳
Chinese: 七百七十九
Chinese (financial): 柒佰柒拾玖

In other modern scripts

Eastern Arabic ٧٧٩ Devanagari ७७९ Bengali ৭৭৯ Tamil ௭௭௯ Thai ๗๗๙ Tibetan ༧༧༩ Khmer ៧៧៩ Lao ໗໗໙ Burmese ၇၇၉

Digit at this position in famous constants

π — Pi (π): Digit 779 = 9
e — Euler's number (e): Digit 779 = 6
φ — Golden ratio (φ): Digit 779 = 9
√2 — Pythagoras's (√2): Digit 779 = 0
ln 2 — Natural log of 2: Digit 779 = 1
γ — Euler-Mascheroni (γ): Digit 779 = 7

Also seen as

Unicode codepoint

Combining Double Acute Accent

U+030B

Non-spacing mark (Mn)

UTF-8 encoding: CC 8B (2 bytes).

Lookup U+030B on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00030B

RGB(0, 3, 11)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.11.

Address: 0.0.3.11
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.11

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

NANP area code 779

The number 779 is an active NANP area code (North American Numbering Plan).

Primary area: Rockford
Region: Illinois
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 779 ↗