Number

706

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

Deficient Number Evil Number Recamán's Sequence Semiprime Smith Number Squarefree Year

Historical context — 706 AD

Calendar year

Year 706 (DCCVI) was a common year starting on Friday of the Julian calendar, the 706th year of the Common Era (CE) and Anno Domini (AD) designations, the 706th year of the 1st millennium, the 6th year of the 8th century, and the 7th year of the 700s decade.

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Historical context — 706 BC

Decade

This article concerns the period 709 BC – 700 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: 52
Started on: Monday
January 1, 706
Ended on: Monday
December 31, 706
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 700s
700–709
Century: 8th century
701–800
Millennium: 1st millennium
1–1000
Years ago: 1,320
1320 years before 2026.

In other calendars

Hebrew: 4466 / 4467 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 87 / 88 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Fire zodiac:Horse
Sexagenary cycle position 43 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1249 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 84 / 85 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 698 / 699 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 628 / 627 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 13
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 10 bits
Reversed: 607
Recamán's sequence: a(2,212) = 706
Square (n²): 498,436
Cube (n³): 351,895,816
Divisor count: 4
σ(n) — sum of divisors: 1,062
φ(n) — Euler's totient: 352
Sum of prime factors: 355

Primality

Prime factorization: 2 × 353

Nearest primes: 701 (−5) · 709 (+3)

Divisors & multiples

All divisors (4)

1 · 2 · 353 (half) · 706

Aliquot sum (sum of proper divisors): 356

Factor pairs (a × b = 706)

1 × 706

2 × 353

First multiples

706 · 1,412 (double) · 2,118 · 2,824 · 3,530 · 4,236 · 4,942 · 5,648 · 6,354 · 7,060

Sums & aliquot sequence

As a sum of two squares: 9² + 25²

As consecutive integers: 175 + 176 + 177 + 178

Aliquot sequence: 706 → 356 → 274 → 140 → 196 → 203 → 37 → 1 → 0 — terminates at zero

Representations

In words: seven hundred six
Ordinal: 706th
Roman numeral: DCCVI
Binary: 1011000010
Octal: 1302
Hexadecimal: 0x2C2
Base64: AsI=
One's complement: 64,829 (16-bit)

In other bases

ternary (3) 222011

quaternary (4) 23002

quinary (5) 10311

senary (6) 3134

septenary (7) 2026

nonary (9) 864

undecimal (11) 592

duodecimal (12) 4aa

tridecimal (13) 424

tetradecimal (14) 386

pentadecimal (15) 321

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ψϛʹ
Mayan (base 20): 𝋡·𝋯·𝋦
Chinese: 七百零六
Chinese (financial): 柒佰零陸

In other modern scripts

Eastern Arabic ٧٠٦ Devanagari ७०६ Bengali ৭০৬ Tamil ௭௦௬ Thai ๗๐๖ Tibetan ༧༠༦ Khmer ៧០៦ Lao ໗໐໖ Burmese ၇၀၆

Digit at this position in famous constants

π — Pi (π): Digit 706 = 9
e — Euler's number (e): Digit 706 = 1
φ — Golden ratio (φ): Digit 706 = 9
√2 — Pythagoras's (√2): Digit 706 = 9
ln 2 — Natural log of 2: Digit 706 = 3
γ — Euler-Mascheroni (γ): Digit 706 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 706, here are decompositions:

5 + 701 = 706
23 + 683 = 706
29 + 677 = 706
47 + 659 = 706
53 + 653 = 706
59 + 647 = 706
89 + 617 = 706
107 + 599 = 706

Showing the first eight; more decompositions exist.

Unicode codepoint

Modifier Letter Left Arrowhead

U+02C2

Modifier symbol (Sk)

UTF-8 encoding: CB 82 (2 bytes).

Lookup U+02C2 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0002C2

RGB(0, 2, 194)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.194.

Address: 0.0.2.194
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.194

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

NANP area code 706

The number 706 is an active NANP area code (North American Numbering Plan).

Primary area: Augusta / Columbus
Region: Georgia
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 706 ↗