718
718 is a composite number, even, a calendar year.
Historical context — 718 AD
Calendar year
Year 718 (DCCXVIII) was a common year starting on Saturday of the Julian calendar, the 718th year of the Common Era (CE) and Anno Domini (AD) designations, the 718th year of the 1st millennium, the 18th year of the 8th century, and the 9th year of the 710s decade.
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Historical context — 718 BC
Decade
This article concerns the period 719 BC – 710 BC.
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
-
Tuesday
January 1, 718
- Ended on
-
Tuesday
December 31, 718
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
710s
710–719
- Century
-
8th century
701–800
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,308
1308 years before 2026.
In other calendars
- Hebrew
-
4478 / 4479 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
99 / 100 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Horse
Sexagenary cycle position 55 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1261 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
96 / 97 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
710 / 711 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
640 / 639 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 359
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seven hundred eighteen
- Ordinal
- 718th
- Roman numeral
- DCCXVIII
- Binary
- 1011001110
- Octal
- 1316
- Hexadecimal
- 0x2CE
- Base64
- As4=
- One's complement
- 64,817 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ψιηʹ
- Mayan (base 20)
- 𝋡·𝋯·𝋲
- Chinese
- 七百一十八
- Chinese (financial)
- 柒佰壹拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 718 = 1
- e — Euler's number (e)
- Digit 718 = 0
- φ — Golden ratio (φ)
- Digit 718 = 4
- √2 — Pythagoras's (√2)
- Digit 718 = 4
- ln 2 — Natural log of 2
- Digit 718 = 1
- γ — Euler-Mascheroni (γ)
- Digit 718 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 718, here are decompositions:
- 17 + 701 = 718
- 41 + 677 = 718
- 59 + 659 = 718
- 71 + 647 = 718
- 101 + 617 = 718
- 131 + 587 = 718
- 149 + 569 = 718
- 197 + 521 = 718
Showing the first eight; more decompositions exist.
UTF-8 encoding: CB 8E (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.206.
- Address
- 0.0.2.206
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.2.206
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 718 is an active NANP area code (North American Numbering Plan).
- Primary area
- New York City outer boroughs
- Region
- New York
- 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.