Number

867

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

Deficient Number Evil Number Recamán's Sequence Year

Historical context — 867 AD

Calendar year

Year 867 (DCCCLXVII) was a common year starting on Wednesday of the Julian calendar.

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

Historical context — 867 BC

Decade

This article concerns the period 869 BC – 860 BC.

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: Saturday
January 1, 867
Ended on: Saturday
December 31, 867
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 860s
860–869
Century: 9th century
801–900
Millennium: 1st millennium
1–1000
Years ago: 1,159
1159 years before 2026.

In other calendars

Hebrew: 4627 / 4628 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 252 / 253 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Fire zodiac:Pig
Sexagenary cycle position 24 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1410 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 245 / 246 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 859 / 860 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 789 / 788 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 21
Digit product: 336
Digital root: 3
Palindrome: No
Bit width: 10 bits
Reversed: 768
Recamán's sequence: a(797) = 867
Square (n²): 751,689
Cube (n³): 651,714,363
Divisor count: 6
σ(n) — sum of divisors: 1,228
φ(n) — Euler's totient: 544
Sum of prime factors: 37

Primality

Prime factorization: 3 × 17 ²

Nearest primes: 863 (−4) · 877 (+10)

Divisors & multiples

All divisors (6)

1 · 3 · 17 · 51 · 289 · 867

Aliquot sum (sum of proper divisors): 361

Factor pairs (a × b = 867)

1 × 867

3 × 289

17 × 51

First multiples

867 · 1,734 (double) · 2,601 · 3,468 · 4,335 · 5,202 · 6,069 · 6,936 · 7,803 · 8,670

Sums & aliquot sequence

As consecutive integers: 433 + 434 288 + 289 + 290 142 + 143 + 144 + 145 + 146 + 147 43 + 44 + … + 59

Aliquot sequence: 867 → 361 → 20 → 22 → 14 → 10 → 8 → 7 → 1 → 0 — terminates at zero

Representations

In words: eight hundred sixty-seven
Ordinal: 867th
Roman numeral: DCCCLXVII
Binary: 1101100011
Octal: 1543
Hexadecimal: 0x363
Base64: A2M=
One's complement: 64,668 (16-bit)

In other bases

ternary (3) 1012010

quaternary (4) 31203

quinary (5) 11432

senary (6) 4003

septenary (7) 2346

nonary (9) 1163

undecimal (11) 719

duodecimal (12) 603

tridecimal (13) 519

tetradecimal (14) 45d

pentadecimal (15) 3cc

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ωξζʹ
Mayan (base 20): 𝋢·𝋣·𝋧
Chinese: 八百六十七
Chinese (financial): 捌佰陸拾柒

In other modern scripts

Eastern Arabic ٨٦٧ Devanagari ८६७ Bengali ৮৬৭ Tamil ௮௬௭ Thai ๘๖๗ Tibetan ༨༦༧ Khmer ៨៦៧ Lao ໘໖໗ Burmese ၈၆၇

Digit at this position in famous constants

π — Pi (π): Digit 867 = 5
e — Euler's number (e): Digit 867 = 3
φ — Golden ratio (φ): Digit 867 = 3
√2 — Pythagoras's (√2): Digit 867 = 6
ln 2 — Natural log of 2: Digit 867 = 1
γ — Euler-Mascheroni (γ): Digit 867 = 4

Also seen as

Unicode codepoint

Combining Latin Small Letter A

U+0363

Non-spacing mark (Mn)

UTF-8 encoding: CD A3 (2 bytes).

Lookup U+0363 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000363

RGB(0, 3, 99)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.99.

Address: 0.0.3.99
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.99

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

NANP area code 867

The number 867 is an active NANP area code (North American Numbering Plan).

Primary area: Statewide
Region: Northwest Territories, Yukon, Nunavut
Country: Canada

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 867 ↗