Number

477

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

477 (four hundred seventy-seven) is an odd 3-digit number. It is a composite number with 6 divisors, and factors as 3² × 53. Written other ways, in Roman numerals it is CDLXXVII and in binary, 111011101.

Arithmetic Number Cube-Free Deficient Number Odious Number Pentagonal Pernicious Number Recamán's Sequence Year

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489

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Historical context — 477 AD

Calendar year

Year 477 (CDLXXVII) was a common year starting on Saturday of the Julian calendar.

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

Historical context — 477 BC

Calendar year

Year 477 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 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: Friday
January 1, 477
Ended on: Friday
December 31, 477
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 470s
470–479
Century: 5th century
401–500
Millennium: 1st millennium
1–1000
Years ago: 1,549
1549 years before 2026.

In other calendars

Hebrew: 4237 / 4238 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Snake
Sexagenary cycle position 54 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1020 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 469 / 470 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 399 / 398 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 18
Digit product: 196
Digital root: 9
Palindrome: No
Bit width: 9 bits
Reversed: 774
Recamán's sequence: a(366) = 477
Square (n²): 227,529
Cube (n³): 108,531,333
Divisor count: 6
σ(n) — sum of divisors: 702
φ(n) — Euler's totient: 312
Sum of prime factors: 59

Primality

Prime factorization: 3 ² × 53

Nearest primes: 467 (−10) · 479 (+2)

Divisors & multiples

All divisors (6)

1 · 3 · 9 · 53 · 159 · 477

Aliquot sum (sum of proper divisors): 225

Factor pairs (a × b = 477)

1 × 477

3 × 159

9 × 53

First multiples

477 · 954 (double) · 1,431 · 1,908 · 2,385 · 2,862 · 3,339 · 3,816 · 4,293 · 4,770

Sums & aliquot sequence

As a sum of two squares: 6² + 21²

As consecutive integers: 238 + 239 158 + 159 + 160 77 + 78 + 79 + 80 + 81 + 82 49 + 50 + … + 57

Aliquot sequence: 477 → 225 → 178 → 92 → 76 → 64 → 63 → 41 → 1 → 0 — terminates at zero

Continued fraction of √n

√477 = [21; (1, 5, 3, 1, 4, 10, 1, 2, 2, 4, 2, 2, 1, 10, 4, 1, 3, 5, 1, 42)]

Period length 20 — the block in parentheses repeats forever.

Representations

In words: four hundred seventy-seven
Ordinal: 477th
Roman numeral: CDLXXVII
Binary: 111011101
Octal: 735
Hexadecimal: 0x1DD
Base64: Ad0=
One's complement: 65,058 (16-bit)
Scientific notation: 4.77 × 10²
As a duration: 477 s = 7 minutes, 57 seconds

In other bases

ternary (3) 122200

quaternary (4) 13131

quinary (5) 3402

senary (6) 2113

septenary (7) 1251

nonary (9) 580

undecimal (11) 3a4

duodecimal (12) 339

tridecimal (13) 2a9

tetradecimal (14) 261

pentadecimal (15) 21c

Palindromic in base 4

As an angle

477° = 1 × 360° + 117°

117° ≈ 2.042 rad

Compass bearing: ESE (east-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): υοζʹ
Mayan (base 20): 𝋡·𝋣·𝋱
Chinese: 四百七十七
Chinese (financial): 肆佰柒拾柒

In other modern scripts

Eastern Arabic ٤٧٧ Devanagari ४७७ Bengali ৪৭৭ Tamil ௪௭௭ Thai ๔๗๗ Tibetan ༤༧༧ Khmer ៤៧៧ Lao ໔໗໗ Burmese ၄၇၇

Digit at this position in famous constants

π — Pi (π): Digit 477 = 5
e — Euler's number (e): Digit 477 = 0
φ — Golden ratio (φ): Digit 477 = 7
√2 — Pythagoras's (√2): Digit 477 = 6
ln 2 — Natural log of 2: Digit 477 = 5
γ — Euler-Mascheroni (γ): Digit 477 = 6

Also seen as

Unicode codepoint

Latin Small Letter Turned E

U+01DD

Lowercase letter (Ll)

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

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

Hex color

#0001DD

RGB(0, 1, 221)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.221.

Address: 0.0.1.221
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.221

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

Musical pitch

Heard as a frequency, 477 Hz is closest to:

Concert pitch (A4 = 440 Hz): A♯4 (466.2 Hz, +40¢)
Scientific pitch (C4 = 256 Hz): B4 (483.3 Hz, -23¢)
Baroque pitch (A4 = 415 Hz): B4 (465.8 Hz, +41¢)