Number

349

349 is a prime, odd, a calendar year.

Arithmetic Number Ascending Digits Cousin Prime Deficient Number Evil Number Prime Pythagorean Prime Recamán's Sequence Squarefree Twin Prime Year

Historical context — 349 AD

Calendar year

Year 349 (CCCXLIX) was a common year starting on Sunday of the Julian calendar.

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Historical context — 349 BC

Calendar year

Year 349 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: Saturday
January 1, 349
Ended on: Saturday
December 31, 349
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 340s
340–349
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,677
1677 years before 2026.

In other calendars

Hebrew: 4109 / 4110 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Earth zodiac:Rooster
Sexagenary cycle position 46 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 892 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 341 / 342 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 271 / 270 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 16
Digit product: 108
Digital root: 7
Palindrome: No
Bit width: 9 bits
Reversed: 943
Recamán's sequence: a(550) = 349
Square (n²): 121,801
Cube (n³): 42,508,549
Divisor count: 2
σ(n) — sum of divisors: 350
φ(n) — Euler's totient: 348

Primality

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

Divisors & multiples

All divisors (2)

1 · 349

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 349)

1 × 349

First multiples

349 · 698 (double) · 1,047 · 1,396 · 1,745 · 2,094 · 2,443 · 2,792 · 3,141 · 3,490

Sums & aliquot sequence

As a sum of two squares: 5² + 18²

As consecutive integers: 174 + 175

Representations

In words: three hundred forty-nine
Ordinal: 349th
Roman numeral: CCCXLIX
Binary: 101011101
Octal: 535
Hexadecimal: 0x15D
Base64: AV0=
One's complement: 65,186 (16-bit)

In other bases

ternary (3) 110221

quaternary (4) 11131

quinary (5) 2344

senary (6) 1341

septenary (7) 1006

nonary (9) 427

undecimal (11) 298

duodecimal (12) 251

tridecimal (13) 20b

tetradecimal (14) 1ad

pentadecimal (15) 184

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): τμθʹ
Mayan (base 20): 𝋱·𝋩
Chinese: 三百四十九
Chinese (financial): 參佰肆拾玖

In other modern scripts

Eastern Arabic ٣٤٩ Devanagari ३४९ Bengali ৩৪৯ Tamil ௩௪௯ Thai ๓๔๙ Tibetan ༣༤༩ Khmer ៣៤៩ Lao ໓໔໙ Burmese ၃၄၉

Digit at this position in famous constants

π — Pi (π): Digit 349 = 4
e — Euler's number (e): Digit 349 = 7
φ — Golden ratio (φ): Digit 349 = 2
√2 — Pythagoras's (√2): Digit 349 = 0
ln 2 — Natural log of 2: Digit 349 = 6
γ — Euler-Mascheroni (γ): Digit 349 = 5

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 347 (gap of 2)
Next prime: 353 (gap of 4)

Pair status: twin with 347, cousin with 353.

Unicode codepoint

Latin Small Letter S With Circumflex

U+015D

Lowercase letter (Ll)

UTF-8 encoding: C5 9D (2 bytes).

Lookup U+015D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00015D

RGB(0, 1, 93)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.93.

Address: 0.0.1.93
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.93

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