1,856
1,856 is a composite number, even, a calendar year.
Notable events — 1856 AD
- Feb 1 The Treaty of Paris is signed, ending the Crimean War.
- May 21 Pro-slavery raiders sack Lawrence, Kansas.
- May 22 Congressman Preston Brooks beats Senator Charles Sumner with a cane on the Senate floor.
- Aug 11 A typhoon devastates the Yangtze River basin.
- Nov 4 James Buchanan is elected US president.
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
-
Tuesday
January 1, 1856
- Ended on
-
Wednesday
December 31, 1856
- Friday the 13ths
-
1
One Friday the 13th this year.
- Easter Sunday
-
March 23
Sunday, March 23, 1856
- Decade
-
1850s
1850–1859
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
170
170 years before 2026.
- US presidential election
-
Yes
US holds a presidential election in years divisible by 4 starting from 1788.
In other calendars
- Hebrew
-
5616 / 5617 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1272 / 1273 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Dragon
Sexagenary cycle position 53 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2399 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1234 / 1235 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1848 / 1849 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1778 / 1777 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 6 × 29
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand eight hundred fifty-six
- Ordinal
- 1856th
- Roman numeral
- MDCCCLVI
- Binary
- 11101000000
- Octal
- 3500
- Hexadecimal
- 0x740
- Base64
- B0A=
- One's complement
- 63,679 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αωνϛʹ
- Mayan (base 20)
- 𝋤·𝋬·𝋰
- Chinese
- 一千八百五十六
- Chinese (financial)
- 壹仟捌佰伍拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,856 = 9
- e — Euler's number (e)
- Digit 1,856 = 0
- φ — Golden ratio (φ)
- Digit 1,856 = 2
- √2 — Pythagoras's (√2)
- Digit 1,856 = 7
- ln 2 — Natural log of 2
- Digit 1,856 = 3
- γ — Euler-Mascheroni (γ)
- Digit 1,856 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1856, here are decompositions:
- 67 + 1789 = 1856
- 73 + 1783 = 1856
- 79 + 1777 = 1856
- 97 + 1759 = 1856
- 103 + 1753 = 1856
- 109 + 1747 = 1856
- 157 + 1699 = 1856
- 163 + 1693 = 1856
Showing the first eight; more decompositions exist.
UTF-8 encoding: DD 80 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.64.
- Address
- 0.0.7.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.64
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1856 first appears in π at position 6,719 of the decimal expansion (the 6,719ordinal-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.