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Number

487

487 is a prime, odd, a calendar year.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Happy Number Odious Number Pernicious Number Prime Recamán's Sequence Squarefree Year

Historical context — 487 AD

Calendar year

Year 487 (CDLXXXVII) was a common year starting on Thursday of the Julian calendar.

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Historical context — 487 BC

Calendar year

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

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback 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: Wednesday
January 1, 487
Ended on: Wednesday
December 31, 487
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 480s
480–489
Century: 5th century
401–500
Millennium: 1st millennium
1–1000
Years ago: 1,539
1539 years before 2026.

In other calendars

Hebrew: 4247 / 4248 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Rabbit
Sexagenary cycle position 4 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1030 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 479 / 480 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 409 / 408 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 19
Digit product: 224
Digital root: 1
Palindrome: No
Bit width: 9 bits
Reversed: 784
Recamán's sequence: a(306) = 487
Square (n²): 237,169
Cube (n³): 115,501,303
Divisor count: 2
σ(n) — sum of divisors: 488
φ(n) — Euler's totient: 486

Primality

487 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 487

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 487)

1 × 487

First multiples

487 · 974 (double) · 1,461 · 1,948 · 2,435 · 2,922 · 3,409 · 3,896 · 4,383 · 4,870

Sums & aliquot sequence

As consecutive integers: 243 + 244

Representations

In words: four hundred eighty-seven
Ordinal: 487th
Roman numeral: CDLXXXVII
Binary: 111100111
Octal: 747
Hexadecimal: 0x1E7
Base64: Aec=
One's complement: 65,048 (16-bit)

In other bases

ternary (3) 200001

quaternary (4) 13213

quinary (5) 3422

senary (6) 2131

septenary (7) 1264

nonary (9) 601

undecimal (11) 403

duodecimal (12) 347

tridecimal (13) 2b6

tetradecimal (14) 26b

pentadecimal (15) 227

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): υπζʹ
Mayan (base 20): 𝋡·𝋤·𝋧
Chinese: 四百八十七
Chinese (financial): 肆佰捌拾柒

In other modern scripts

Eastern Arabic ٤٨٧ Devanagari ४८७ Bengali ৪৮৭ Tamil ௪௮௭ Thai ๔๘๗ Tibetan ༤༨༧ Khmer ៤៨៧ Lao ໔໘໗ Burmese ၄၈၇

Digit at this position in famous constants

π — Pi (π): Digit 487 = 7
e — Euler's number (e): Digit 487 = 6
φ — Golden ratio (φ): Digit 487 = 5
√2 — Pythagoras's (√2): Digit 487 = 5
ln 2 — Natural log of 2: Digit 487 = 2
γ — Euler-Mascheroni (γ): Digit 487 = 1

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 479 (gap of 8)
Next prime: 491 (gap of 4)

Pair status: cousin with 491.

Unicode codepoint

ǧ

Latin Small Letter G With Caron

U+01E7

Lowercase letter (Ll)

UTF-8 encoding: C7 A7 (2 bytes).

Lookup U+01E7 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0001E7

RGB(0, 1, 231)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.231.

Address: 0.0.1.231
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.231

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