1,880
1,880 is a composite number, even, a calendar year.
Notable events — 1880 AD
- Apr 23 William Gladstone returns as UK prime minister.
- Sep 4 The Greenback Party nominates James B. Weaver for US president.
- Jul 11 Australia's bushranger Ned Kelly is captured at Glenrowan.
- Nov 2 James A. Garfield wins the US presidential election.
- Nov 28 The first electric streetlights are demonstrated by Charles F. Brush in Wabash, Indiana.
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
-
53
Long year: contains 53 ISO weeks.
- Started on
-
Thursday
January 1, 1880
- Ended on
-
Friday
December 31, 1880
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
March 28
Sunday, March 28, 1880
- Decade
-
1880s
1880–1889
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
146
146 years before 2026.
- US presidential election
-
Yes
US holds a presidential election in years divisible by 4 starting from 1788.
In other calendars
- Hebrew
-
5640 / 5641 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1297 / 1298 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Metal zodiac:Dragon
Sexagenary cycle position 17 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2423 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1258 / 1259 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1872 / 1873 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1802 / 1801 Saka
Indian national calendar; year starts in March.
- Japanese
-
Meiji 13
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 881
- Flips to (rotate 180°)
- 881
- Recamán's sequence
- a(7,984) = 1,880
- Square (n²)
- 3,534,400
- Cube (n³)
- 6,644,672,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 4,320
- φ(n) — Euler's totient
- 736
- Sum of prime factors
- 58
Primality
Prime factorization: 2 3 × 5 × 47
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand eight hundred eighty
- Ordinal
- 1880th
- Roman numeral
- MDCCCLXXX
- Binary
- 11101011000
- Octal
- 3530
- Hexadecimal
- 0x758
- Base64
- B1g=
- One's complement
- 63,655 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵αωπʹ
- Mayan (base 20)
- 𝋤·𝋮·𝋠
- Chinese
- 一千八百八十
- Chinese (financial)
- 壹仟捌佰捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,880 = 2
- e — Euler's number (e)
- Digit 1,880 = 5
- φ — Golden ratio (φ)
- Digit 1,880 = 6
- √2 — Pythagoras's (√2)
- Digit 1,880 = 0
- ln 2 — Natural log of 2
- Digit 1,880 = 7
- γ — Euler-Mascheroni (γ)
- Digit 1,880 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1880, here are decompositions:
- 3 + 1877 = 1880
- 7 + 1873 = 1880
- 13 + 1867 = 1880
- 19 + 1861 = 1880
- 79 + 1801 = 1880
- 97 + 1783 = 1880
- 103 + 1777 = 1880
- 127 + 1753 = 1880
Showing the first eight; more decompositions exist.
UTF-8 encoding: DD 98 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.88.
- Address
- 0.0.7.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.88
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1880 first appears in π at position 17,915 of the decimal expansion (the 17,915ordinal-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.