Number

973

973 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Descending Digits Happy Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree Year

Historical context — 973 AD

Calendar year

Year 973 (CMLXXIII) was a common year starting on Wednesday of the Julian calendar.

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Historical context — 973 BC

Decade

The 970s BC is a decade that lasted from 979 BC to 970 BC.

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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: Friday
January 1, 973
Ended on: Friday
December 31, 973
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 970s
970–979
Century: 10th century
901–1000
Millennium: 1st millennium
1–1000
Years ago: 1,053
1053 years before 2026.

In other calendars

Hebrew: 4733 / 4734 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 362 / 363 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Water zodiac:Rooster
Sexagenary cycle position 10 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1516 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 351 / 352 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 965 / 966 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 895 / 894 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 19
Digit product: 189
Digital root: 1
Palindrome: No
Bit width: 10 bits
Reversed: 379
Recamán's sequence: a(4,473) = 973
Square (n²): 946,729
Cube (n³): 921,167,317
Divisor count: 4
σ(n) — sum of divisors: 1,120
φ(n) — Euler's totient: 828
Sum of prime factors: 146

Primality

Prime factorization: 7 × 139

Nearest primes: 971 (−2) · 977 (+4)

Divisors & multiples

All divisors (4)

1 · 7 · 139 · 973

Aliquot sum (sum of proper divisors): 147

Factor pairs (a × b = 973)

1 × 973

7 × 139

First multiples

973 · 1,946 (double) · 2,919 · 3,892 · 4,865 · 5,838 · 6,811 · 7,784 · 8,757 · 9,730

Sums & aliquot sequence

As consecutive integers: 486 + 487 136 + 137 + … + 142 63 + 64 + … + 76

Aliquot sequence: 973 → 147 → 81 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: nine hundred seventy-three
Ordinal: 973rd
Roman numeral: CMLXXIII
Binary: 1111001101
Octal: 1715
Hexadecimal: 0x3CD
Base64: A80=
One's complement: 64,562 (16-bit)

In other bases

ternary (3) 1100001

quaternary (4) 33031

quinary (5) 12343

senary (6) 4301

septenary (7) 2560

nonary (9) 1301

undecimal (11) 805

duodecimal (12) 691

tridecimal (13) 59b

tetradecimal (14) 4d7

pentadecimal (15) 44d

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): ϡογʹ
Mayan (base 20): 𝋢·𝋨·𝋭
Chinese: 九百七十三
Chinese (financial): 玖佰柒拾參

In other modern scripts

Eastern Arabic ٩٧٣ Devanagari ९७३ Bengali ৯৭৩ Tamil ௯௭௩ Thai ๙๗๓ Tibetan ༩༧༣ Khmer ៩៧៣ Lao ໙໗໓ Burmese ၉၇၃

Digit at this position in famous constants

π — Pi (π): Digit 973 = 3
e — Euler's number (e): Digit 973 = 7
φ — Golden ratio (φ): Digit 973 = 6
√2 — Pythagoras's (√2): Digit 973 = 1
ln 2 — Natural log of 2: Digit 973 = 5
γ — Euler-Mascheroni (γ): Digit 973 = 5

Also seen as

Unicode codepoint

Greek Small Letter Upsilon With Tonos

U+03CD

Lowercase letter (Ll)

UTF-8 encoding: CF 8D (2 bytes).

Lookup U+03CD on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0003CD

RGB(0, 3, 205)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.205.

Address: 0.0.3.205
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.205

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

NANP area code 973

The number 973 is an active NANP area code (North American Numbering Plan).

Primary area: Newark / Paterson
Region: New Jersey
Country: United States

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.

Look up area code 973 ↗