Number

854

854 is a composite number, even, a calendar year.

Arithmetic Number Deficient Number Descending Digits Evil Number Recamán's Sequence Sphenic Number Squarefree Year

Historical context — 854 AD

Calendar year

Year 854 (DCCCLIV) was a common year starting on Monday of the Julian calendar.

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Historical context — 854 BC

Decade

This article concerns the period 859 BC – 850 BC.

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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: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 854
Ended on: Thursday
December 31, 854
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 850s
850–859
Century: 9th century
801–900
Millennium: 1st millennium
1–1000
Years ago: 1,172
1172 years before 2026.

In other calendars

Hebrew: 4614 / 4615 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 239 / 240 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Dog
Sexagenary cycle position 11 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1397 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 232 / 233 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 846 / 847 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 776 / 775 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 17
Digit product: 160
Digital root: 8
Palindrome: No
Bit width: 10 bits
Reversed: 458
Recamán's sequence: a(823) = 854
Square (n²): 729,316
Cube (n³): 622,835,864
Divisor count: 8
σ(n) — sum of divisors: 1,488
φ(n) — Euler's totient: 360
Sum of prime factors: 70

Primality

Prime factorization: 2 × 7 × 61

Nearest primes: 853 (−1) · 857 (+3)

Divisors & multiples

All divisors (8)

1 · 2 · 7 · 14 · 61 · 122 · 427 (half) · 854

Aliquot sum (sum of proper divisors): 634

Factor pairs (a × b = 854)

1 × 854

2 × 427

7 × 122

14 × 61

First multiples

854 · 1,708 (double) · 2,562 · 3,416 · 4,270 · 5,124 · 5,978 · 6,832 · 7,686 · 8,540

Sums & aliquot sequence

As consecutive integers: 212 + 213 + 214 + 215 119 + 120 + … + 125 17 + 18 + … + 44

Aliquot sequence: 854 → 634 → 320 → 442 → 314 → 160 → 218 → 112 → 136 → 134 → 70 → 74 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: eight hundred fifty-four
Ordinal: 854th
Roman numeral: DCCCLIV
Binary: 1101010110
Octal: 1526
Hexadecimal: 0x356
Base64: A1Y=
One's complement: 64,681 (16-bit)

In other bases

ternary (3) 1011122

quaternary (4) 31112

quinary (5) 11404

senary (6) 3542

septenary (7) 2330

nonary (9) 1148

undecimal (11) 707

duodecimal (12) 5b2

tridecimal (13) 509

tetradecimal (14) 450

pentadecimal (15) 3be

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): ωνδʹ
Mayan (base 20): 𝋢·𝋢·𝋮
Chinese: 八百五十四
Chinese (financial): 捌佰伍拾肆

In other modern scripts

Eastern Arabic ٨٥٤ Devanagari ८५४ Bengali ৮৫৪ Tamil ௮௫௪ Thai ๘๕๔ Tibetan ༨༥༤ Khmer ៨៥៤ Lao ໘໕໔ Burmese ၈၅၄

Digit at this position in famous constants

π — Pi (π): Digit 854 = 0
e — Euler's number (e): Digit 854 = 1
φ — Golden ratio (φ): Digit 854 = 7
√2 — Pythagoras's (√2): Digit 854 = 0
ln 2 — Natural log of 2: Digit 854 = 3
γ — Euler-Mascheroni (γ): Digit 854 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 854, here are decompositions:

31 + 823 = 854
43 + 811 = 854
67 + 787 = 854
97 + 757 = 854
103 + 751 = 854
127 + 727 = 854
163 + 691 = 854
181 + 673 = 854

Showing the first eight; more decompositions exist.

Unicode codepoint

Combining Right Arrowhead And Up Arrowhead Below

U+0356

Non-spacing mark (Mn)

UTF-8 encoding: CD 96 (2 bytes).

Lookup U+0356 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000356

RGB(0, 3, 86)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.86.

Address: 0.0.3.86
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.86

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

NANP area code 854

The number 854 is an active NANP area code (North American Numbering Plan).

Primary area: Charleston
Region: South Carolina
Country: United States

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 854 ↗