1,940
1,940 is a composite number, even, a calendar year.
Notable events — 1940 AD
- May 10 Germany invades the Low Countries; Winston Churchill becomes UK prime minister.
- Jun 14 German troops enter Paris; France surrenders eight days later.
- Jul 10 The Battle of Britain begins.
- Aug 20 Leon Trotsky is fatally attacked with an ice axe in Mexico City.
- Sep 27 Germany, Italy, and Japan sign the Tripartite Pact, forming the Axis.
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
-
Monday
January 1, 1940
- Ended on
-
Tuesday
December 31, 1940
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
March 24
Sunday, March 24, 1940
- Decade
-
1940s
1940–1949
- Century
-
20th century
1901–2000
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
86
86 years before 2026.
- US presidential election
-
Yes
US holds a presidential election in years divisible by 4 starting from 1788.
In other calendars
- Hebrew
-
5700 / 5701 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1358 / 1359 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
-
2483 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1318 / 1319 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1932 / 1933 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1862 / 1861 Saka
Indian national calendar; year starts in March.
- Japanese
-
Shōwa 15
Reign-era counting from the start of each emperor's reign.
Properties
Primality
Prime factorization: 2 2 × 5 × 97
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand nine hundred forty
- Ordinal
- 1940th
- Roman numeral
- MCMXL
- Binary
- 11110010100
- Octal
- 3624
- Hexadecimal
- 0x794
- Base64
- B5Q=
- One's complement
- 63,595 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵αϡμʹ
- Mayan (base 20)
- 𝋤·𝋱·𝋠
- Chinese
- 一千九百四十
- Chinese (financial)
- 壹仟玖佰肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,940 = 3
- e — Euler's number (e)
- Digit 1,940 = 0
- φ — Golden ratio (φ)
- Digit 1,940 = 3
- √2 — Pythagoras's (√2)
- Digit 1,940 = 1
- ln 2 — Natural log of 2
- Digit 1,940 = 7
- γ — Euler-Mascheroni (γ)
- Digit 1,940 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1940, here are decompositions:
- 7 + 1933 = 1940
- 61 + 1879 = 1940
- 67 + 1873 = 1940
- 73 + 1867 = 1940
- 79 + 1861 = 1940
- 109 + 1831 = 1940
- 139 + 1801 = 1940
- 151 + 1789 = 1940
Showing the first eight; more decompositions exist.
UTF-8 encoding: DE 94 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.148.
- Address
- 0.0.7.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.148
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1940 first appears in π at position 28,162 of the decimal expansion (the 28,162ordinal-suffix:nd 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.