770
770 is a composite number, even, a calendar year.
Historical context — 770 AD
Calendar year
Year 770 (DCCLXX) was a common year starting on Monday of the Julian calendar.
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Historical context — 770 BC
Decade
This article concerns the period 779 BC – 770 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, 770
- Ended on
-
Thursday
December 31, 770
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
770s
770–779
- Century
-
8th century
701–800
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,256
1256 years before 2026.
In other calendars
- Hebrew
-
4530 / 4531 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
152 / 154 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Metal zodiac:Dog
Sexagenary cycle position 47 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1313 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
148 / 149 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
762 / 763 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
692 / 691 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 5 × 7 × 11
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seven hundred seventy
- Ordinal
- 770th
- Roman numeral
- DCCLXX
- Binary
- 1100000010
- Octal
- 1402
- Hexadecimal
- 0x302
- Base64
- AwI=
- One's complement
- 64,765 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ψοʹ
- Mayan (base 20)
- 𝋡·𝋲·𝋪
- Chinese
- 七百七十
- Chinese (financial)
- 柒佰柒拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 770 = 3
- e — Euler's number (e)
- Digit 770 = 8
- φ — Golden ratio (φ)
- Digit 770 = 5
- √2 — Pythagoras's (√2)
- Digit 770 = 7
- ln 2 — Natural log of 2
- Digit 770 = 6
- γ — Euler-Mascheroni (γ)
- Digit 770 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 770, here are decompositions:
- 13 + 757 = 770
- 19 + 751 = 770
- 31 + 739 = 770
- 37 + 733 = 770
- 43 + 727 = 770
- 61 + 709 = 770
- 79 + 691 = 770
- 97 + 673 = 770
Showing the first eight; more decompositions exist.
UTF-8 encoding: CC 82 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.2.
- Address
- 0.0.3.2
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.3.2
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The number 770 is an active NANP area code (North American Numbering Plan).
- Primary area
- Atlanta suburbs
- 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.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.