Number

1,299

1,299 is a composite number, odd, a calendar year.

1,299 (one thousand two hundred ninety-nine) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 3 × 433. Written other ways, in Roman numerals it is MCCXCIX and in binary, 10100010011.

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

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

1,287 1,288 1,289 1,290 1,291 1,292 1,293 1,294 1,295 1,296 1,297 1,298 1,299 1,300 1,301 1,302 1,303 1,304 1,305 1,306 1,307 1,308 1,309 1,310 1,311

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Historical context — 1299 AD

Calendar year

Year 1299 (MCCXCIX) was a common year starting on Thursday of the Julian 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: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 1299
Ended on: Thursday
December 31, 1299
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 1290s
1290–1299
Century: 13th century
1201–1300
Millennium: 2nd millennium
1001–2000
Years ago: 727
727 years before 2026.

In other calendars

Hebrew: 5059 / 5060 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 698 / 699 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Earth zodiac:Pig
Sexagenary cycle position 36 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1842 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 677 / 678 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1291 / 1292 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1221 / 1220 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 4
Digit sum: 21
Digit product: 162
Digital root: 3
Palindrome: No
Bit width: 11 bits
Reversed: 9,921
Recamán's sequence: a(30,450) = 1,299
Square (n²): 1,687,401
Cube (n³): 2,191,933,899
Divisor count: 4
σ(n) — sum of divisors: 1,736
φ(n) — Euler's totient: 864
Sum of prime factors: 436

Primality

Prime factorization: 3 × 433

Nearest primes: 1,297 (−2) · 1,301 (+2)

Divisors & multiples

All divisors (4)

1 · 3 · 433 · 1299

Aliquot sum (sum of proper divisors): 437

Factor pairs (a × b = 1,299)

1 × 1299

3 × 433

First multiples

1,299 · 2,598 (double) · 3,897 · 5,196 · 6,495 · 7,794 · 9,093 · 10,392 · 11,691 · 12,990

Sums & aliquot sequence

As consecutive integers: 649 + 650 432 + 433 + 434 214 + 215 + 216 + 217 + 218 + 219

Aliquot sequence: 1,299 → 437 → 43 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,299 = [36; (24, 72)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words: one thousand two hundred ninety-nine
Ordinal: 1299th
Roman numeral: MCCXCIX
Binary: 10100010011
Octal: 2423
Hexadecimal: 0x513
Base64: BRM=
One's complement: 64,236 (16-bit)
Scientific notation: 1.299 × 10³
As a duration: 1,299 s = 21 minutes, 39 seconds

In other bases

ternary (3) 1210010

quaternary (4) 110103

quinary (5) 20144

senary (6) 10003

septenary (7) 3534

nonary (9) 1703

undecimal (11) a81

duodecimal (12) 903

tridecimal (13) 78c

tetradecimal (14) 68b

pentadecimal (15) 5b9

As an angle

1,299° = 3 × 360° + 219°

219° ≈ 3.822 rad

Compass bearing: SW (southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ασϟθʹ
Mayan (base 20): 𝋣·𝋤·𝋳
Chinese: 一千二百九十九
Chinese (financial): 壹仟貳佰玖拾玖

In other modern scripts

Eastern Arabic ١٢٩٩ Devanagari १२९९ Bengali ১২৯৯ Tamil ௧௨௯௯ Thai ๑๒๙๙ Tibetan ༡༢༩༩ Khmer ១២៩៩ Lao ໑໒໙໙ Burmese ၁၂၉၉

Digit at this position in famous constants

π — Pi (π): Digit 1,299 = 9
e — Euler's number (e): Digit 1,299 = 7
φ — Golden ratio (φ): Digit 1,299 = 7
√2 — Pythagoras's (√2): Digit 1,299 = 9
ln 2 — Natural log of 2: Digit 1,299 = 3
γ — Euler-Mascheroni (γ): Digit 1,299 = 6

Also seen as

Unicode codepoint

Cyrillic Small Letter El With Hook

U+0513

Lowercase letter (Ll)

UTF-8 encoding: D4 93 (2 bytes).

Lookup U+0513 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000513

RGB(0, 5, 19)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.19.

Address: 0.0.5.19
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.19

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

Musical pitch

Heard as a frequency, 1,299 Hz is closest to:

Concert pitch (A4 = 440 Hz): E6 (1318.5 Hz, -26¢)
Scientific pitch (C4 = 256 Hz): E6 (1290.2 Hz, +12¢)
Baroque pitch (A4 = 415 Hz): F6 (1317.5 Hz, -25¢)

Position in π

The digit sequence 1299 first appears in π at position 4,450 of the decimal expansion (the 4,450ordinal-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.

Look up 1299 on Pi Search ↗