Number

179

179 is a prime, odd, a calendar year.

Arithmetic Number Ascending Digits Chen Prime Deficient Number Emirp Odious Number Pernicious Number Prime Recamán's Sequence Safe Prime Sexy Prime Sophie Germain Prime Squarefree Twin Prime Year

Historical context — 179 AD

Calendar year

Year 179 (CLXXIX) was a common year starting on Thursday of the Julian calendar.

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

Historical context — 179 BC

Calendar year

Year 179 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: Friday
January 1, 179
Ended on: Friday
December 31, 179
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 170s
170–179
Century: 2nd century
101–200
Millennium: 1st millennium
1–1000
Years ago: 1,847
1847 years before 2026.

In other calendars

Hebrew: 3939 / 3940 AM
Rosh Hashanah falls in September/October.
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: 722 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 171 / 172 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 101 / 100 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 17
Digit product: 63
Digital root: 8
Palindrome: No
Bit width: 8 bits
Reversed: 971
Recamán's sequence: a(309) = 179
Square (n²): 32,041
Cube (n³): 5,735,339
Divisor count: 2
σ(n) — sum of divisors: 180
φ(n) — Euler's totient: 178

Primality

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

Divisors & multiples

All divisors (2)

1 · 179

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 179)

1 × 179

First multiples

179 · 358 (double) · 537 · 716 · 895 · 1,074 · 1,253 · 1,432 · 1,611 · 1,790

Sums & aliquot sequence

As consecutive integers: 89 + 90

Representations

In words: one hundred seventy-nine
Ordinal: 179th
Roman numeral: CLXXIX
Binary: 10110011
Octal: 263
Hexadecimal: 0xB3
Base64: sw==
One's complement: 76 (8-bit)

In other bases

ternary (3) 20122

quaternary (4) 2303

quinary (5) 1204

senary (6) 455

septenary (7) 344

nonary (9) 218

undecimal (11) 153

duodecimal (12) 12b

tridecimal (13) 10a

tetradecimal (14) cb

pentadecimal (15) be

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ροθʹ
Mayan (base 20): 𝋨·𝋳
Chinese: 一百七十九
Chinese (financial): 壹佰柒拾玖

In other modern scripts

Eastern Arabic ١٧٩ Devanagari १७९ Bengali ১৭৯ Tamil ௧௭௯ Thai ๑๗๙ Tibetan ༡༧༩ Khmer ១៧៩ Lao ໑໗໙ Burmese ၁၇၉

Digit at this position in famous constants

π — Pi (π): Digit 179 = 5
e — Euler's number (e): Digit 179 = 2
φ — Golden ratio (φ): Digit 179 = 6
√2 — Pythagoras's (√2): Digit 179 = 7
ln 2 — Natural log of 2: Digit 179 = 3
γ — Euler-Mascheroni (γ): Digit 179 = 6

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 173 (gap of 6)
Next prime: 181 (gap of 2)

Pair status: twin with 181, sexy with 173.

Unicode codepoint

Superscript Three

U+00B3

Other number (No)

UTF-8 encoding: C2 B3 (2 bytes).

Lookup U+00B3 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0000B3

RGB(0, 0, 179)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.179.

Address: 0.0.0.179
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.0.179

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