Number

1,992

1,992 is a composite number, even, a calendar year.

1,992 (one thousand nine hundred ninety-two) is an even 4-digit number. It is a composite number with 16 divisors, and factors as 2³ × 3 × 83. Its proper divisors sum to 3,048, more than the number itself, making it an abundant number. Written other ways, in Roman numerals it is MCMXCII and in binary, 11111001000.

Abundant Number Arithmetic Number Evil Number Gapful Number Happy Number Recamán's Sequence Semiperfect Number Year

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

1,980 1,981 1,982 1,983 1,984 1,985 1,986 1,987 1,988 1,989 1,990 1,991 1,992 1,993 1,994 1,995 1,996 1,997 1,998 1,999 2,000 2,001 2,002 2,003 2,004

less more

Notable events — 1992 AD

Feb 7 European leaders sign the Maastricht Treaty, founding the European Union.
Feb 8 The Winter Olympics open in Albertville, France.
Apr 5 The Siege of Sarajevo begins as Bosnia and Herzegovina is engulfed by war.
Apr 29 The acquittal of LAPD officers in the Rodney King beating sparks the Los Angeles riots.
Nov 3 Bill Clinton defeats George H. W. Bush in the US presidential election.

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: Wednesday
January 1, 1992
Ended on: Thursday
December 31, 1992
Friday the 13ths: 2
2 Friday the 13ths this year.
Easter Sunday: April 19
Sunday, April 19, 1992
Decade: 1990s
1990–1999
Century: 20th century
1901–2000
Millennium: 2nd millennium
1001–2000
Years ago: 34
34 years before 2026.
US presidential election: Yes
US holds a presidential election in years divisible by 4 starting from 1788.
Summer Olympics: Yes
Winter Olympics: Yes
Held in the same year as the Summer Games until 1992.

In other calendars

Hebrew: 5752 / 5753 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 1412 / 1413 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Water zodiac:Monkey
Sexagenary cycle position 9 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 2535 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 1370 / 1371 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1984 / 1985 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1914 / 1913 Saka
Indian national calendar; year starts in March.
Japanese: Heisei 4
Reign-era counting from the start of each emperor's reign.

Properties

Parity: Even
Digit count: 4
Digit sum: 21
Digit product: 162
Digital root: 3
Palindrome: No
Bit width: 11 bits
Reversed: 2,991
Recamán's sequence: a(3,767) = 1,992
Square (n²): 3,968,064
Cube (n³): 7,904,383,488
Divisor count: 16
σ(n) — sum of divisors: 5,040
φ(n) — Euler's totient: 656
Sum of prime factors: 92

Primality

Prime factorization: 2 ³ × 3 × 83

Nearest primes: 1,987 (−5) · 1,993 (+1)

Divisors & multiples

All divisors (16)

1 · 2 · 3 · 4 · 6 · 8 · 12 · 24 · 83 · 166 · 249 · 332 · 498 · 664 · 996 (half) · 1992

Aliquot sum (sum of proper divisors): 3,048

Factor pairs (a × b = 1,992)

1 × 1992

2 × 996

3 × 664

4 × 498

6 × 332

8 × 249

12 × 166

24 × 83

First multiples

1,992 · 3,984 (double) · 5,976 · 7,968 · 9,960 · 11,952 · 13,944 · 15,936 · 17,928 · 19,920

Sums & aliquot sequence

As consecutive integers: 663 + 664 + 665 117 + 118 + … + 132 18 + 19 + … + 65

Aliquot sequence: 1,992 → 3,048 → 4,632 → 7,008 → 11,640 → 23,640 → 47,640 → 95,640 → 191,640 → 383,640 → 825,960 → 1,652,280 → 4,134,360 → 8,410,920 → 24,766,680 → 50,025,480 → 112,492,920 — unresolved within range

Continued fraction of √n

√1,992 = [44; (1, 1, 1, 2, 1, 1, 10, 1, 1, 2, 1, 1, 1, 88)]

Period length 14 — the block in parentheses repeats forever.

Representations

In words: one thousand nine hundred ninety-two
Ordinal: 1992nd
Roman numeral: MCMXCII
Binary: 11111001000
Octal: 3710
Hexadecimal: 0x7C8
Base64: B8g=
One's complement: 63,543 (16-bit)
Scientific notation: 1.992 × 10³
As a duration: 1,992 s = 33 minutes, 12 seconds

In other bases

ternary (3) 2201210

quaternary (4) 133020

quinary (5) 30432

senary (6) 13120

septenary (7) 5544

nonary (9) 2653

undecimal (11) 1551

duodecimal (12) 11a0

tridecimal (13) ba3

tetradecimal (14) a24

pentadecimal (15) 8cc

Palindromic in base 11

As an angle

1,992° = 5 × 360° + 192°

192° ≈ 3.351 rad

Compass bearing: SSW (south-southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵αϡϟβʹ
Mayan (base 20): 𝋤·𝋳·𝋬
Chinese: 一千九百九十二
Chinese (financial): 壹仟玖佰玖拾貳

In other modern scripts

Eastern Arabic ١٩٩٢ Devanagari १९९२ Bengali ১৯৯২ Tamil ௧௯௯௨ Thai ๑๙๙๒ Tibetan ༡༩༩༢ Khmer ១៩៩២ Lao ໑໙໙໒ Burmese ၁၉၉၂

Digit at this position in famous constants

π — Pi (π): Digit 1,992 = 7
e — Euler's number (e): Digit 1,992 = 8
φ — Golden ratio (φ): Digit 1,992 = 3
√2 — Pythagoras's (√2): Digit 1,992 = 6
ln 2 — Natural log of 2: Digit 1,992 = 3
γ — Euler-Mascheroni (γ): Digit 1,992 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1992, here are decompositions:

5 + 1987 = 1992
13 + 1979 = 1992
19 + 1973 = 1992
41 + 1951 = 1992
43 + 1949 = 1992
59 + 1933 = 1992
61 + 1931 = 1992
79 + 1913 = 1992

Showing the first eight; more decompositions exist.

Unicode codepoint

Nko Digit Eight

U+07C8

Decimal digit (Nd)

UTF-8 encoding: DF 88 (2 bytes).

Lookup U+07C8 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0007C8

RGB(0, 7, 200)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.200.

Address: 0.0.7.200
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.7.200

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

Musical pitch

Heard as a frequency, 1,992 Hz is closest to:

Concert pitch (A4 = 440 Hz): B6 (1975.5 Hz, +14¢)
Scientific pitch (C4 = 256 Hz): C7 (2048 Hz, -48¢ — about midway to B6)
Baroque pitch (A4 = 415 Hz): C7 (1974.1 Hz, +16¢)

Position in π

The digit sequence 1992 first appears in π at position 1,384 of the decimal expansion (the 1,384ordinal-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.

Look up 1992 on Pi Search ↗