Number

629

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

Arithmetic Number Deficient Number Evil Number Harshad / Niven Recamán's Sequence Semiprime Squarefree Year

Historical context — 629 AD

Calendar year

Year 629 (DCXXIX) was a common year starting on Sunday of the Julian calendar.

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Historical context — 629 BC

Decade

This article concerns the period 629 BC – 620 BC.

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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, 629
Ended on: Thursday
December 31, 629
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 620s
620–629
Century: 7th century
601–700
Millennium: 1st millennium
1–1000
Years ago: 1,397
1397 years before 2026.

In other calendars

Hebrew: 4389 / 4390 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 7 / 8 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Earth zodiac:Ox
Sexagenary cycle position 26 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1172 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 7 / 8 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 621 / 622 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 551 / 550 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 17
Digit product: 108
Digital root: 8
Palindrome: No
Bit width: 10 bits
Reversed: 926
Recamán's sequence: a(8,882) = 629
Square (n²): 395,641
Cube (n³): 248,858,189
Divisor count: 4
σ(n) — sum of divisors: 684
φ(n) — Euler's totient: 576
Sum of prime factors: 54

Primality

Prime factorization: 17 × 37

Nearest primes: 619 (−10) · 631 (+2)

Divisors & multiples

All divisors (4)

1 · 17 · 37 · 629

Aliquot sum (sum of proper divisors): 55

Factor pairs (a × b = 629)

1 × 629

17 × 37

First multiples

629 · 1,258 (double) · 1,887 · 2,516 · 3,145 · 3,774 · 4,403 · 5,032 · 5,661 · 6,290

Sums & aliquot sequence

As a sum of two squares: 2² + 25² = 10² + 23²

As consecutive integers: 314 + 315 29 + 30 + … + 45 2 + 3 + … + 35

Aliquot sequence: 629 → 55 → 17 → 1 → 0 — terminates at zero

Representations

In words: six hundred twenty-nine
Ordinal: 629th
Roman numeral: DCXXIX
Binary: 1001110101
Octal: 1165
Hexadecimal: 0x275
Base64: AnU=
One's complement: 64,906 (16-bit)

In other bases

ternary (3) 212022

quaternary (4) 21311

quinary (5) 10004

senary (6) 2525

septenary (7) 1556

nonary (9) 768

undecimal (11) 522

duodecimal (12) 445

tridecimal (13) 395

tetradecimal (14) 32d

pentadecimal (15) 2be

Historical numeral systems

Babylonian (base 60): 𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): χκθʹ
Mayan (base 20): 𝋡·𝋫·𝋩
Chinese: 六百二十九
Chinese (financial): 陸佰貳拾玖

In other modern scripts

Eastern Arabic ٦٢٩ Devanagari ६२९ Bengali ৬২৯ Tamil ௬௨௯ Thai ๖๒๙ Tibetan ༦༢༩ Khmer ៦២៩ Lao ໖໒໙ Burmese ၆၂၉

Digit at this position in famous constants

π — Pi (π): Digit 629 = 3
e — Euler's number (e): Digit 629 = 6
φ — Golden ratio (φ): Digit 629 = 6
√2 — Pythagoras's (√2): Digit 629 = 6
ln 2 — Natural log of 2: Digit 629 = 4
γ — Euler-Mascheroni (γ): Digit 629 = 9

Also seen as

Unicode codepoint

Latin Small Letter Barred O

U+0275

Lowercase letter (Ll)

UTF-8 encoding: C9 B5 (2 bytes).

Lookup U+0275 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000275

RGB(0, 2, 117)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.117.

Address: 0.0.2.117
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.117

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

NANP area code 629

The number 629 is an active NANP area code (North American Numbering Plan).

Primary area: Nashville
Region: Tennessee
Country: United States

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.

Look up area code 629 ↗