Number

475

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

Deficient Number Odious Number Pernicious Number Recamán's Sequence Year

Historical context — 475 AD

Calendar year

Year 475 (CDLXXV) was a common year starting on Wednesday of the Julian calendar.

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Historical context — 475 BC

Calendar year

Year 475 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: Tuesday
January 1, 475
Ended on: Tuesday
December 31, 475
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 470s
470–479
Century: 5th century
401–500
Millennium: 1st millennium
1–1000
Years ago: 1,551
1551 years before 2026.

In other calendars

Hebrew: 4235 / 4236 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Wood zodiac:Rabbit
Sexagenary cycle position 52 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1018 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 467 / 468 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 397 / 396 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 16
Digit product: 140
Digital root: 7
Palindrome: No
Bit width: 9 bits
Reversed: 574
Recamán's sequence: a(2,418) = 475
Square (n²): 225,625
Cube (n³): 107,171,875
Divisor count: 6
σ(n) — sum of divisors: 620
φ(n) — Euler's totient: 360
Sum of prime factors: 29

Primality

Prime factorization: 5 ² × 19

Nearest primes: 467 (−8) · 479 (+4)

Divisors & multiples

All divisors (6)

1 · 5 · 19 · 25 · 95 · 475

Aliquot sum (sum of proper divisors): 145

Factor pairs (a × b = 475)

1 × 475

5 × 95

19 × 25

First multiples

475 · 950 (double) · 1,425 · 1,900 · 2,375 · 2,850 · 3,325 · 3,800 · 4,275 · 4,750

Sums & aliquot sequence

As consecutive integers: 237 + 238 93 + 94 + 95 + 96 + 97 43 + 44 + … + 52 16 + 17 + … + 34

Aliquot sequence: 475 → 145 → 35 → 13 → 1 → 0 — terminates at zero

Representations

In words: four hundred seventy-five
Ordinal: 475th
Roman numeral: CDLXXV
Binary: 111011011
Octal: 733
Hexadecimal: 0x1DB
Base64: Ads=
One's complement: 65,060 (16-bit)

In other bases

ternary (3) 122121

quaternary (4) 13123

quinary (5) 3400

senary (6) 2111

septenary (7) 1246

nonary (9) 577

undecimal (11) 3a2

duodecimal (12) 337

tridecimal (13) 2a7

tetradecimal (14) 25d

pentadecimal (15) 21a

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): υοεʹ
Mayan (base 20): 𝋡·𝋣·𝋯
Chinese: 四百七十五
Chinese (financial): 肆佰柒拾伍

In other modern scripts

Eastern Arabic ٤٧٥ Devanagari ४७५ Bengali ৪৭৫ Tamil ௪௭௫ Thai ๔๗๕ Tibetan ༤༧༥ Khmer ៤៧៥ Lao ໔໗໕ Burmese ၄၇၅

Digit at this position in famous constants

π — Pi (π): Digit 475 = 5
e — Euler's number (e): Digit 475 = 4
φ — Golden ratio (φ): Digit 475 = 6
√2 — Pythagoras's (√2): Digit 475 = 6
ln 2 — Natural log of 2: Digit 475 = 3
γ — Euler-Mascheroni (γ): Digit 475 = 0

Also seen as

Unicode codepoint

Latin Capital Letter U With Diaeresis And Grave

U+01DB

Uppercase letter (Lu)

UTF-8 encoding: C7 9B (2 bytes).

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

Hex color

#0001DB

RGB(0, 1, 219)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.219.

Address: 0.0.1.219
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.219

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

NANP area code 475

The number 475 is an active NANP area code (North American Numbering Plan).

Primary area: New Haven / Bridgeport
Region: Connecticut
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 475 ↗