Number

464

464 is a composite number, even, a calendar year.

Abundant Number Arithmetic Number Evil Number Happy Number Palindrome Practical Number Recamán's Sequence Semiperfect Number Year

Historical context — 464 AD

Calendar year

Year 464 (CDLXIV) was a leap year starting on Wednesday of the Julian calendar.

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Historical context — 464 BC

Calendar year

Year 464 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: Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year: 366
ISO weeks: 52
Started on: Tuesday
January 1, 464
Ended on: Wednesday
December 31, 464
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 460s
460–469
Century: 5th century
401–500
Millennium: 1st millennium
1–1000
Years ago: 1,562
1562 years before 2026.

In other calendars

Hebrew: 4224 / 4225 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Wood zodiac:Dragon
Sexagenary cycle position 41 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1007 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 456 / 457 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 386 / 385 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 14
Digit product: 96
Digital root: 5
Palindrome: Yes
Bit width: 9 bits
Recamán's sequence: a(440) = 464
Square (n²): 215,296
Cube (n³): 99,897,344
Divisor count: 10
σ(n) — sum of divisors: 930
φ(n) — Euler's totient: 224
Sum of prime factors: 37

Primality

Prime factorization: 2 ⁴ × 29

Nearest primes: 463 (−1) · 467 (+3)

Divisors & multiples

All divisors (10)

1 · 2 · 4 · 8 · 16 · 29 · 58 · 116 · 232 (half) · 464

Aliquot sum (sum of proper divisors): 466

Factor pairs (a × b = 464)

1 × 464

2 × 232

4 × 116

8 × 58

16 × 29

First multiples

464 · 928 (double) · 1,392 · 1,856 · 2,320 · 2,784 · 3,248 · 3,712 · 4,176 · 4,640

Sums & aliquot sequence

As a sum of two squares: 8² + 20²

As consecutive integers: 2 + 3 + … + 30

Aliquot sequence: 464 → 466 → 236 → 184 → 176 → 196 → 203 → 37 → 1 → 0 — terminates at zero

Representations

In words: four hundred sixty-four
Ordinal: 464th
Roman numeral: CDLXIV
Binary: 111010000
Octal: 720
Hexadecimal: 0x1D0
Base64: AdA=
One's complement: 65,071 (16-bit)

In other bases

ternary (3) 122012

quaternary (4) 13100

quinary (5) 3324

senary (6) 2052

septenary (7) 1232

nonary (9) 565

undecimal (11) 392

duodecimal (12) 328

tridecimal (13) 299

tetradecimal (14) 252

pentadecimal (15) 20e

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): υξδʹ
Mayan (base 20): 𝋡·𝋣·𝋤
Chinese: 四百六十四
Chinese (financial): 肆佰陸拾肆

In other modern scripts

Eastern Arabic ٤٦٤ Devanagari ४६४ Bengali ৪৬৪ Tamil ௪௬௪ Thai ๔๖๔ Tibetan ༤༦༤ Khmer ៤៦៤ Lao ໔໖໔ Burmese ၄၆၄

Digit at this position in famous constants

π — Pi (π): Digit 464 = 7
e — Euler's number (e): Digit 464 = 9
φ — Golden ratio (φ): Digit 464 = 0
√2 — Pythagoras's (√2): Digit 464 = 5
ln 2 — Natural log of 2: Digit 464 = 7
γ — Euler-Mascheroni (γ): Digit 464 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 464, here are decompositions:

3 + 461 = 464
7 + 457 = 464
31 + 433 = 464
43 + 421 = 464
67 + 397 = 464
97 + 367 = 464
127 + 337 = 464
151 + 313 = 464

Showing the first eight; more decompositions exist.

Unicode codepoint

Latin Small Letter I With Caron

U+01D0

Lowercase letter (Ll)

UTF-8 encoding: C7 90 (2 bytes).

Lookup U+01D0 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0001D0

RGB(0, 1, 208)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.208.

Address: 0.0.1.208
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.208

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