110
110 is a composite number, even, a calendar year.
110 (one hundred ten) is an even 3-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 11. Written other ways, in Roman numerals it is CX and in binary, 1101110.
Interestingness
Historical context — 110 AD
Calendar year
Year 110 (CX) was a common year starting on Tuesday of the Julian calendar.
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Historical context — 110 BC
Calendar year
Year 110 BC was a year of the pre-Julian Roman calendar.
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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
-
Wednesday
January 1, 110
- Ended on
-
Wednesday
December 31, 110
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
110s
110–119
- Century
-
2nd century
101–200
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,916
1916 years before 2026.
In other calendars
- Hebrew
-
3870 / 3871 AM
Rosh Hashanah falls in September/October.
- 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
-
653 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
102 / 103 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
32 / 31 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 5 × 11
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√110 = [10; (2, 20)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred ten
- Ordinal
- 110th
- Roman numeral
- CX
- Binary
- 1101110
- Octal
- 156
- Hexadecimal
- 0x6E
- Base64
- bg==
- One's complement
- 145 (8-bit)
- Scientific notation
- 1.1 × 10²
- As a duration
- 110 s = 1 minute, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓍢𓎆
- Greek (Milesian)
- ριʹ
- Mayan (base 20)
- 𝋥·𝋪
- Chinese
- 一百一十
- Chinese (financial)
- 壹佰壹拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 110 = 5
- e — Euler's number (e)
- Digit 110 = 9
- φ — Golden ratio (φ)
- Digit 110 = 0
- √2 — Pythagoras's (√2)
- Digit 110 = 2
- ln 2 — Natural log of 2
- Digit 110 = 0
- γ — Euler-Mascheroni (γ)
- Digit 110 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 110, here are decompositions:
- 3 + 107 = 110
- 7 + 103 = 110
- 13 + 97 = 110
- 31 + 79 = 110
- 37 + 73 = 110
- 43 + 67 = 110
As an ASCII codepoint, 110 is n. Printable ASCII character n.
TCP/UDP port 110 is the well-known port for POP3 — Post Office Protocol v3 — mail retrieval.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.110.
- Address
- 0.0.0.110
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.0.110
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 110 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A2 (110 Hz, exact)
- Scientific pitch (C4 = 256 Hz): A2 (107.6 Hz, +38¢)
- Baroque pitch (A4 = 415 Hz): A♯2 (109.9 Hz, +1¢)
As a MIDI note number, 110 is D8 (4698.6 Hz at concert pitch).
On the periodic table, atomic number 110 is Darmstadtium (Ds) — period 7.
On an ingredients label, E110 is Sunset Yellow FCF, a food colour.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.