Number

299

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

299 (two hundred ninety-nine) is an odd 3-digit number. It is a composite number with 4 divisors, and factors as 13 × 23. Written other ways, in Roman numerals it is CCXCIX and in binary, 100101011.

Arithmetic Number Cake Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree Year

Interestingness

★ ★ ★ ★ ☆

7 notable facts · grade B

287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311

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Historical context — 299 AD

Calendar year

Year 299 (CCXCIX) was a common year starting on Sunday of the Julian calendar.

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

Historical context — 299 BC

Calendar year

Year 299 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 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, 299
Ended on: Sunday
December 31, 299
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 290s
290–299
Century: 3rd century
201–300
Millennium: 1st millennium
1–1000
Years ago: 1,727
1727 years before 2026.

In other calendars

Hebrew: 4059 / 4060 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: 842 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 291 / 292 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 221 / 220 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 20
Digit product: 162
Digital root: 2
Palindrome: No
Bit width: 9 bits
Reversed: 992
Recamán's sequence: a(650) = 299
Square (n²): 89,401
Cube (n³): 26,730,899
Divisor count: 4
σ(n) — sum of divisors: 336
φ(n) — Euler's totient: 264
Sum of prime factors: 36

Primality

Prime factorization: 13 × 23

Nearest primes: 293 (−6) · 307 (+8)

Divisors & multiples

All divisors (4)

1 · 13 · 23 · 299

Aliquot sum (sum of proper divisors): 37

Factor pairs (a × b = 299)

1 × 299

13 × 23

First multiples

299 · 598 (double) · 897 · 1,196 · 1,495 · 1,794 · 2,093 · 2,392 · 2,691 · 2,990

Sums & aliquot sequence

As consecutive integers: 149 + 150 17 + 18 + … + 29 2 + 3 + … + 24

Aliquot sequence: 299 → 37 → 1 → 0 — terminates at zero

Continued fraction of √n

√299 = [17; (3, 2, 3, 34)]

Period length 4 — the block in parentheses repeats forever.

Representations

In words: two hundred ninety-nine
Ordinal: 299th
Roman numeral: CCXCIX
Binary: 100101011
Octal: 453
Hexadecimal: 0x12B
Base64: ASs=
One's complement: 65,236 (16-bit)
Scientific notation: 2.99 × 10²
As a duration: 299 s = 4 minutes, 59 seconds

In other bases

ternary (3) 102002

quaternary (4) 10223

quinary (5) 2144

senary (6) 1215

septenary (7) 605

nonary (9) 362

undecimal (11) 252

duodecimal (12) 20b

tridecimal (13) 1a0

tetradecimal (14) 175

pentadecimal (15) 14e

Palindromic in base 11

As an angle

299°

299° ≈ 5.219 rad

Compass bearing: WNW (west-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): σϟθʹ
Mayan (base 20): 𝋮·𝋳
Chinese: 二百九十九
Chinese (financial): 貳佰玖拾玖

In other modern scripts

Eastern Arabic ٢٩٩ Devanagari २९९ Bengali ২৯৯ Tamil ௨௯௯ Thai ๒๙๙ Tibetan ༢༩༩ Khmer ២៩៩ Lao ໒໙໙ Burmese ၂၉၉

Digit at this position in famous constants

π — Pi (π): Digit 299 = 2
e — Euler's number (e): Digit 299 = 0
φ — Golden ratio (φ): Digit 299 = 3
√2 — Pythagoras's (√2): Digit 299 = 9
ln 2 — Natural log of 2: Digit 299 = 7
γ — Euler-Mascheroni (γ): Digit 299 = 5

Also seen as

Unicode codepoint

Latin Small Letter I With Macron

U+012B

Lowercase letter (Ll)

UTF-8 encoding: C4 AB (2 bytes).

Lookup U+012B on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00012B

RGB(0, 1, 43)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.43.

Address: 0.0.1.43
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.43

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

Musical pitch

Heard as a frequency, 299 Hz is closest to:

Concert pitch (A4 = 440 Hz): D4 (293.7 Hz, +31¢)
Scientific pitch (C4 = 256 Hz): D♯4 (304.4 Hz, -31¢)
Baroque pitch (A4 = 415 Hz): D♯4 (293.4 Hz, +32¢)