Number

591

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

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

Historical context — 591 AD

Calendar year

Year 591 (DXCI) was a common year starting on Monday of the Julian calendar.

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Historical context — 591 BC

Calendar year

The year 591 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: Saturday
January 1, 591
Ended on: Saturday
December 31, 591
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 590s
590–599
Century: 6th century
501–600
Millennium: 1st millennium
1–1000
Years ago: 1,435
1435 years before 2026.

In other calendars

Hebrew: 4351 / 4352 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Metal zodiac:Pig
Sexagenary cycle position 48 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1134 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 583 / 584 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 513 / 512 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 15
Digit product: 45
Digital root: 6
Palindrome: No
Bit width: 10 bits
Reversed: 195
Recamán's sequence: a(1,077) = 591
Square (n²): 349,281
Cube (n³): 206,425,071
Divisor count: 4
σ(n) — sum of divisors: 792
φ(n) — Euler's totient: 392
Sum of prime factors: 200

Primality

Prime factorization: 3 × 197

Nearest primes: 587 (−4) · 593 (+2)

Divisors & multiples

All divisors (4)

1 · 3 · 197 · 591

Aliquot sum (sum of proper divisors): 201

Factor pairs (a × b = 591)

1 × 591

3 × 197

First multiples

591 · 1,182 (double) · 1,773 · 2,364 · 2,955 · 3,546 · 4,137 · 4,728 · 5,319 · 5,910

Sums & aliquot sequence

As consecutive integers: 295 + 296 196 + 197 + 198 96 + 97 + 98 + 99 + 100 + 101

Aliquot sequence: 591 → 201 → 71 → 1 → 0 — terminates at zero

Representations

In words: five hundred ninety-one
Ordinal: 591st
Roman numeral: DXCI
Binary: 1001001111
Octal: 1117
Hexadecimal: 0x24F
Base64: Ak8=
One's complement: 64,944 (16-bit)

In other bases

ternary (3) 210220

quaternary (4) 21033

quinary (5) 4331

senary (6) 2423

septenary (7) 1503

nonary (9) 726

undecimal (11) 498

duodecimal (12) 413

tridecimal (13) 366

tetradecimal (14) 303

pentadecimal (15) 296

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): φϟαʹ
Mayan (base 20): 𝋡·𝋩·𝋫
Chinese: 五百九十一
Chinese (financial): 伍佰玖拾壹

In other modern scripts

Eastern Arabic ٥٩١ Devanagari ५९१ Bengali ৫৯১ Tamil ௫௯௧ Thai ๕๙๑ Tibetan ༥༩༡ Khmer ៥៩១ Lao ໕໙໑ Burmese ၅၉၁

Digit at this position in famous constants

π — Pi (π): Digit 591 = 6
e — Euler's number (e): Digit 591 = 6
φ — Golden ratio (φ): Digit 591 = 4
√2 — Pythagoras's (√2): Digit 591 = 0
ln 2 — Natural log of 2: Digit 591 = 4
γ — Euler-Mascheroni (γ): Digit 591 = 5

Also seen as

Unicode codepoint

Latin Small Letter Y With Stroke

U+024F

Lowercase letter (Ll)

UTF-8 encoding: C9 8F (2 bytes).

Lookup U+024F on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00024F

RGB(0, 2, 79)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.79.

Address: 0.0.2.79
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.79

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