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Number

1,946

1,946 is a composite number, even, a calendar year.

Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree Year

Notable events — 1946 AD

  1. Jan 10 The first UN General Assembly opens in London.
  2. Mar 5 Churchill delivers his "Iron Curtain" speech in Fulton, Missouri.
  3. Jul 4 The Philippines gains independence from the United States.
  4. Oct 1 Nazi leaders are convicted at the Nuremberg trials.
  5. Dec 11 UNICEF is established.

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
Tuesday
January 1, 1946
Ended on
Tuesday
December 31, 1946
Friday the 13ths
2
2 Friday the 13ths this year.
Easter Sunday
April 21
Sunday, April 21, 1946
Decade
1940s
1940–1949
Century
20th century
1901–2000
Millennium
2nd millennium
1001–2000
Years ago
80
80 years before 2026.

In other calendars

Hebrew
5706 / 5707 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
1365 / 1366 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Fire zodiac:Dog
Sexagenary cycle position 23 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
2489 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
1324 / 1325 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1938 / 1939 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1868 / 1867 Saka
Indian national calendar; year starts in March.
Japanese
Shōwa 21
Reign-era counting from the start of each emperor's reign.

Properties

Parity
Even
Digit count
4
Digit sum
20
Digit product
216
Digital root
2
Palindrome
No
Bit width
11 bits
Reversed
6,491
Recamán's sequence
a(3,859) = 1,946
Square (n²)
3,786,916
Cube (n³)
7,369,338,536
Divisor count
8
σ(n) — sum of divisors
3,360
φ(n) — Euler's totient
828
Sum of prime factors
148

Primality

Prime factorization: 2 × 7 × 139

Nearest primes: 1,933 (−13) · 1,949 (+3)

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 139 · 278 · 973 (half) · 1946
Aliquot sum (sum of proper divisors): 1,414
Factor pairs (a × b = 1,946)
1 × 1946
2 × 973
7 × 278
14 × 139
First multiples
1,946 · 3,892 (double) · 5,838 · 7,784 · 9,730 · 11,676 · 13,622 · 15,568 · 17,514 · 19,460

Sums & aliquot sequence

As consecutive integers: 485 + 486 + 487 + 488 275 + 276 + … + 281 56 + 57 + … + 83
Aliquot sequence: 1,946 1,414 1,034 694 350 394 200 265 59 1 0 — terminates at zero

Representations

In words
one thousand nine hundred forty-six
Ordinal
1946th
Roman numeral
MCMXLVI
Binary
11110011010
Octal
3632
Hexadecimal
0x79A
Base64
B5o=
One's complement
63,589 (16-bit)
In other bases
ternary (3) 2200002
quaternary (4) 132122
quinary (5) 30241
senary (6) 13002
septenary (7) 5450
nonary (9) 2602
undecimal (11) 150a
duodecimal (12) 1162
tridecimal (13) b69
tetradecimal (14) 9d0
pentadecimal (15) 89b

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵αϡμϛʹ
Mayan (base 20)
𝋤·𝋱·𝋦
Chinese
一千九百四十六
Chinese (financial)
壹仟玖佰肆拾陸
In other modern scripts
Eastern Arabic ١٩٤٦ Devanagari १९४६ Bengali ১৯৪৬ Tamil ௧௯௪௬ Thai ๑๙๔๖ Tibetan ༡༩༤༦ Khmer ១៩៤៦ Lao ໑໙໔໖ Burmese ၁၉၄၆

Digit at this position in famous constants

π — Pi (π)
Digit 1,946 = 9
e — Euler's number (e)
Digit 1,946 = 2
φ — Golden ratio (φ)
Digit 1,946 = 9
√2 — Pythagoras's (√2)
Digit 1,946 = 3
ln 2 — Natural log of 2
Digit 1,946 = 4
γ — Euler-Mascheroni (γ)
Digit 1,946 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1946, here are decompositions:

  • 13 + 1933 = 1946
  • 67 + 1879 = 1946
  • 73 + 1873 = 1946
  • 79 + 1867 = 1946
  • 157 + 1789 = 1946
  • 163 + 1783 = 1946
  • 193 + 1753 = 1946
  • 199 + 1747 = 1946

Showing the first eight; more decompositions exist.

Unicode codepoint
ޚ
Thaana Letter Khaa
U+079A
Other letter (Lo)

UTF-8 encoding: DE 9A (2 bytes).

Hex color
#00079A
RGB(0, 7, 154)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.154.

Address
0.0.7.154
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.7.154

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 1946 first appears in π at position 7,383 of the decimal expansion (the 7,383ordinal-suffix:rd 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.