196
196 is a composite number, even, a calendar year.
Historical context — 196 AD
Calendar year
Year 196 (CXCVI) was a leap year starting on Thursday of the Julian calendar.
Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →
Notable events — 196 BC
- Undated The Rosetta Stone is carved as a decree of Ptolemy V.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
Year facts
- Year type
-
Leap year
Divisible by 4 and not by 100; February has 29 days.
- Days in year
- 366
- ISO weeks
- 52
- Started on
-
Friday
January 1, 196
- Ended on
-
Saturday
December 31, 196
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
190s
190–199
- Century
-
2nd century
101–200
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,830
1830 years before 2026.
In other calendars
- Hebrew
-
3956 / 3957 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Fire zodiac:Rat
Sexagenary cycle position 13 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
739 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
188 / 189 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
118 / 117 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 16
- Digit product
- 54
- Digital root
- 7
- Palindrome
- No
- Bit width
- 8 bits
- Reversed
- 691
- Flips to (rotate 180°)
- 961
- Recamán's sequence
- a(1,379) = 196
- Square (n²)
- 38,416
- Cube (n³)
- 7,529,536
- Square root (√n)
- 14
- Divisor count
- 9
- σ(n) — sum of divisors
- 399
- φ(n) — Euler's totient
- 84
- Sum of prime factors
- 18
Primality
Prime factorization: 2 2 × 7 2
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred ninety-six
- Ordinal
- 196th
- Roman numeral
- CXCVI
- Binary
- 11000100
- Octal
- 304
- Hexadecimal
- 0xC4
- Base64
- xA==
- One's complement
- 59 (8-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ρϟϛʹ
- Mayan (base 20)
- 𝋩·𝋰
- Chinese
- 一百九十六
- Chinese (financial)
- 壹佰玖拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 196 = 0
- e — Euler's number (e)
- Digit 196 = 1
- φ — Golden ratio (φ)
- Digit 196 = 0
- √2 — Pythagoras's (√2)
- Digit 196 = 0
- ln 2 — Natural log of 2
- Digit 196 = 1
- γ — Euler-Mascheroni (γ)
- Digit 196 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 196, here are decompositions:
- 3 + 193 = 196
- 5 + 191 = 196
- 17 + 179 = 196
- 23 + 173 = 196
- 29 + 167 = 196
- 47 + 149 = 196
- 59 + 137 = 196
- 83 + 113 = 196
Showing the first eight; more decompositions exist.
UTF-8 encoding: C3 84 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.196.
- Address
- 0.0.0.196
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.0.196
Unspecified address (0.0.0.0/8) — "this network" placeholder.