Number

674

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

674 (six hundred seventy-four) is an even 3-digit number. It is a composite number with 4 divisors, and factors as 2 × 337. Written other ways, in Roman numerals it is DCLXXIV and in binary, 1010100010.

Cube-Free Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686

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Historical context — 674 AD

Calendar year

Year 674 (DCLXXIV) was a common year starting on Sunday of the Julian calendar.

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

Historical context — 674 BC

Calendar year

The year 674 BC or 674 BCE 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: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 674
Ended on: Thursday
December 31, 674
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 670s
670–679
Century: 7th century
601–700
Millennium: 1st millennium
1–1000
Years ago: 1,352
1352 years before 2026.

In other calendars

Hebrew: 4434 / 4435 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 54 / 55 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Dog
Sexagenary cycle position 11 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1217 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 52 / 53 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 666 / 667 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 596 / 595 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 17
Digit product: 168
Digital root: 8
Palindrome: No
Bit width: 10 bits
Reversed: 476
Recamán's sequence: a(2,276) = 674
Square (n²): 454,276
Cube (n³): 306,182,024
Divisor count: 4
σ(n) — sum of divisors: 1,014
φ(n) — Euler's totient: 336
Sum of prime factors: 339

Primality

Prime factorization: 2 × 337

Nearest primes: 673 (−1) · 677 (+3)

Divisors & multiples

All divisors (4)

1 · 2 · 337 (half) · 674

Aliquot sum (sum of proper divisors): 340

Factor pairs (a × b = 674)

1 × 674

2 × 337

First multiples

674 · 1,348 (double) · 2,022 · 2,696 · 3,370 · 4,044 · 4,718 · 5,392 · 6,066 · 6,740

Sums & aliquot sequence

As a sum of two squares: 7² + 25²

As consecutive integers: 167 + 168 + 169 + 170

Aliquot sequence: 674 → 340 → 416 → 466 → 236 → 184 → 176 → 196 → 203 → 37 → 1 → 0 — terminates at zero

Continued fraction of √n

√674 = [25; (1, 24, 1, 50)]

Period length 4 — the block in parentheses repeats forever.

Representations

In words: six hundred seventy-four
Ordinal: 674th
Roman numeral: DCLXXIV
Binary: 1010100010
Octal: 1242
Hexadecimal: 0x2A2
Base64: AqI=
One's complement: 64,861 (16-bit)
Scientific notation: 6.74 × 10²
As a duration: 674 s = 11 minutes, 14 seconds

In other bases

ternary (3) 220222

quaternary (4) 22202

quinary (5) 10144

senary (6) 3042

septenary (7) 1652

nonary (9) 828

undecimal (11) 563

duodecimal (12) 482

tridecimal (13) 3cb

tetradecimal (14) 362

pentadecimal (15) 2ee

Palindromic in base 9, base 16

As an angle

674° = 1 × 360° + 314°

314° ≈ 5.48 rad

Compass bearing: NW (northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): χοδʹ
Mayan (base 20): 𝋡·𝋭·𝋮
Chinese: 六百七十四
Chinese (financial): 陸佰柒拾肆

In other modern scripts

Eastern Arabic ٦٧٤ Devanagari ६७४ Bengali ৬৭৪ Tamil ௬௭௪ Thai ๖๗๔ Tibetan ༦༧༤ Khmer ៦៧៤ Lao ໖໗໔ Burmese ၆၇၄

Digit at this position in famous constants

π — Pi (π): Digit 674 = 5
e — Euler's number (e): Digit 674 = 8
φ — Golden ratio (φ): Digit 674 = 2
√2 — Pythagoras's (√2): Digit 674 = 2
ln 2 — Natural log of 2: Digit 674 = 4
γ — Euler-Mascheroni (γ): Digit 674 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 674, here are decompositions:

13 + 661 = 674
31 + 643 = 674
43 + 631 = 674
61 + 613 = 674
67 + 607 = 674
73 + 601 = 674
97 + 577 = 674
103 + 571 = 674

Showing the first eight; more decompositions exist.

Unicode codepoint

Latin Letter Reversed Glottal Stop With Stroke

U+02A2

Lowercase letter (Ll)

UTF-8 encoding: CA A2 (2 bytes).

Lookup U+02A2 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0002A2

RGB(0, 2, 162)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.162.

Address: 0.0.2.162
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.162

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

Musical pitch

Heard as a frequency, 674 Hz is closest to:

Concert pitch (A4 = 440 Hz): E5 (659.3 Hz, +38¢)
Scientific pitch (C4 = 256 Hz): F5 (683.4 Hz, -24¢)
Baroque pitch (A4 = 415 Hz): F5 (658.8 Hz, +40¢)