Number

447

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

Arithmetic Number Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 447 AD

Calendar year

Year 447 (CDXLVII) 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 →

Notable events — 447 BC

Undated Construction begins on the Parthenon in Athens.

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

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: Tuesday
January 1, 447
Ended on: Tuesday
December 31, 447
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: 1,579
1579 years before 2026.

In other calendars

Hebrew: 4207 / 4208 AM
Rosh Hashanah falls in September/October.
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: 990 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 439 / 440 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 369 / 368 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 15
Digit product: 112
Digital root: 6
Palindrome: No
Bit width: 9 bits
Reversed: 744
Recamán's sequence: a(4,749) = 447
Square (n²): 199,809
Cube (n³): 89,314,623
Divisor count: 4
σ(n) — sum of divisors: 600
φ(n) — Euler's totient: 296
Sum of prime factors: 152

Primality

Prime factorization: 3 × 149

Nearest primes: 443 (−4) · 449 (+2)

Divisors & multiples

All divisors (4)

1 · 3 · 149 · 447

Aliquot sum (sum of proper divisors): 153

Factor pairs (a × b = 447)

1 × 447

3 × 149

First multiples

447 · 894 (double) · 1,341 · 1,788 · 2,235 · 2,682 · 3,129 · 3,576 · 4,023 · 4,470

Sums & aliquot sequence

As consecutive integers: 223 + 224 148 + 149 + 150 72 + 73 + 74 + 75 + 76 + 77

Aliquot sequence: 447 → 153 → 81 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: four hundred forty-seven
Ordinal: 447th
Roman numeral: CDXLVII
Binary: 110111111
Octal: 677
Hexadecimal: 0x1BF
Base64: Ab8=
One's complement: 65,088 (16-bit)

In other bases

ternary (3) 121120

quaternary (4) 12333

quinary (5) 3242

senary (6) 2023

septenary (7) 1206

nonary (9) 546

undecimal (11) 377

duodecimal (12) 313

tridecimal (13) 285

tetradecimal (14) 23d

pentadecimal (15) 1ec

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): υμζʹ
Mayan (base 20): 𝋡·𝋢·𝋧
Chinese: 四百四十七
Chinese (financial): 肆佰肆拾柒

In other modern scripts

Eastern Arabic ٤٤٧ Devanagari ४४७ Bengali ৪৪৭ Tamil ௪௪௭ Thai ๔๔๗ Tibetan ༤༤༧ Khmer ៤៤៧ Lao ໔໔໗ Burmese ၄၄၇

Digit at this position in famous constants

π — Pi (π): Digit 447 = 1
e — Euler's number (e): Digit 447 = 5
φ — Golden ratio (φ): Digit 447 = 7
√2 — Pythagoras's (√2): Digit 447 = 6
ln 2 — Natural log of 2: Digit 447 = 5
γ — Euler-Mascheroni (γ): Digit 447 = 0

Also seen as

Unicode codepoint

Latin Letter Wynn

U+01BF

Lowercase letter (Ll)

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

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

Hex color

#0001BF

RGB(0, 1, 191)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.191.

Address: 0.0.1.191
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.191

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