1,906
1,906 is a composite number, even, a calendar year.
Notable events — 1906 AD
- Apr 18 A magnitude 7.9 earthquake and subsequent fire destroy much of San Francisco.
- Jun 30 The Pure Food and Drug Act and Meat Inspection Act are signed in the US.
- Aug 21 The Lakeview Gusher, the largest US oil-well blowout, begins in California.
- Oct 22 Paul Cézanne dies, leaving modern art transformed.
- Dec 24 Reginald Fessenden makes the first AM radio broadcast of voice and music.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
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, 1906
- Ended on
-
Monday
December 31, 1906
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
April 15
Sunday, April 15, 1906
- Decade
-
1900s
1900–1909
- Century
-
20th century
1901–2000
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
120
120 years before 2026.
In other calendars
- Hebrew
-
5666 / 5667 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1323 / 1324 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
-
2449 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1284 / 1285 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1898 / 1899 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1828 / 1827 Saka
Indian national calendar; year starts in March.
- Japanese
-
Meiji 39
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,091
- Flips to (rotate 180°)
- 9,061
- Recamán's sequence
- a(7,932) = 1,906
- Square (n²)
- 3,632,836
- Cube (n³)
- 6,924,185,416
- Divisor count
- 4
- σ(n) — sum of divisors
- 2,862
- φ(n) — Euler's totient
- 952
- Sum of prime factors
- 955
Primality
Prime factorization: 2 × 953
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand nine hundred six
- Ordinal
- 1906th
- Roman numeral
- MCMVI
- Binary
- 11101110010
- Octal
- 3562
- Hexadecimal
- 0x772
- Base64
- B3I=
- One's complement
- 63,629 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αϡϛʹ
- Mayan (base 20)
- 𝋤·𝋯·𝋦
- Chinese
- 一千九百零六
- Chinese (financial)
- 壹仟玖佰零陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,906 = 4
- e — Euler's number (e)
- Digit 1,906 = 4
- φ — Golden ratio (φ)
- Digit 1,906 = 4
- √2 — Pythagoras's (√2)
- Digit 1,906 = 1
- ln 2 — Natural log of 2
- Digit 1,906 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,906 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1906, here are decompositions:
- 5 + 1901 = 1906
- 17 + 1889 = 1906
- 29 + 1877 = 1906
- 59 + 1847 = 1906
- 83 + 1823 = 1906
- 173 + 1733 = 1906
- 197 + 1709 = 1906
- 239 + 1667 = 1906
Showing the first eight; more decompositions exist.
UTF-8 encoding: DD B2 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.114.
- Address
- 0.0.7.114
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.114
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1906 first appears in π at position 2,128 of the decimal expansion (the 2,128ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.