Number

446

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

Arithmetic Number Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree Year

Historical context — 446 AD

Calendar year

Year 446 (CDXLVI) was a common year starting on Tuesday of the Julian calendar.

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Historical context — 446 BC

Calendar year

Year 446 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: Monday
January 1, 446
Ended on: Monday
December 31, 446
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 440s
440–449
Century: 5th century
401–500
Millennium: 1st millennium
1–1000
Years ago: 1,580
1580 years before 2026.

In other calendars

Hebrew: 4206 / 4207 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Dog
Sexagenary cycle position 23 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 989 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 438 / 439 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 368 / 367 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 14
Digit product: 96
Digital root: 5
Palindrome: No
Bit width: 9 bits
Reversed: 644
Recamán's sequence: a(4,751) = 446
Square (n²): 198,916
Cube (n³): 88,716,536
Divisor count: 4
σ(n) — sum of divisors: 672
φ(n) — Euler's totient: 222
Sum of prime factors: 225

Primality

Prime factorization: 2 × 223

Nearest primes: 443 (−3) · 449 (+3)

Divisors & multiples

All divisors (4)

1 · 2 · 223 (half) · 446

Aliquot sum (sum of proper divisors): 226

Factor pairs (a × b = 446)

1 × 446

2 × 223

First multiples

446 · 892 (double) · 1,338 · 1,784 · 2,230 · 2,676 · 3,122 · 3,568 · 4,014 · 4,460

Sums & aliquot sequence

As consecutive integers: 110 + 111 + 112 + 113

Aliquot sequence: 446 → 226 → 116 → 94 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: four hundred forty-six
Ordinal: 446th
Roman numeral: CDXLVI
Binary: 110111110
Octal: 676
Hexadecimal: 0x1BE
Base64: Ab4=
One's complement: 65,089 (16-bit)

In other bases

ternary (3) 121112

quaternary (4) 12332

quinary (5) 3241

senary (6) 2022

septenary (7) 1205

nonary (9) 545

undecimal (11) 376

duodecimal (12) 312

tridecimal (13) 284

tetradecimal (14) 23c

pentadecimal (15) 1eb

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): υμϛʹ
Mayan (base 20): 𝋡·𝋢·𝋦
Chinese: 四百四十六
Chinese (financial): 肆佰肆拾陸

In other modern scripts

Eastern Arabic ٤٤٦ Devanagari ४४६ Bengali ৪৪৬ Tamil ௪௪௬ Thai ๔๔๖ Tibetan ༤༤༦ Khmer ៤៤៦ Lao ໔໔໖ Burmese ၄၄၆

Digit at this position in famous constants

π — Pi (π): Digit 446 = 1
e — Euler's number (e): Digit 446 = 9
φ — Golden ratio (φ): Digit 446 = 7
√2 — Pythagoras's (√2): Digit 446 = 0
ln 2 — Natural log of 2: Digit 446 = 8
γ — Euler-Mascheroni (γ): Digit 446 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 446, here are decompositions:

3 + 443 = 446
7 + 439 = 446
13 + 433 = 446
37 + 409 = 446
67 + 379 = 446
73 + 373 = 446
79 + 367 = 446
97 + 349 = 446

Showing the first eight; more decompositions exist.

Unicode codepoint

Latin Letter Inverted Glottal Stop With Stroke

U+01BE

Lowercase letter (Ll)

UTF-8 encoding: C6 BE (2 bytes).

Lookup U+01BE on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0001BE

RGB(0, 1, 190)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.190.

Address: 0.0.1.190
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.190

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