Number

1,373

1,373 is a prime, odd, a calendar year.

Arithmetic Number Deficient Number Happy Number Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Sexy Prime Squarefree Year

Historical context — 1373 AD

Calendar year

Year 1373 (MCCCLXXIII) was a common year starting on Saturday of the Julian calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

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, 1373
Ended on: Friday
December 31, 1373
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 1370s
1370–1379
Century: 14th century
1301–1400
Millennium: 2nd millennium
1001–2000
Years ago: 653
653 years before 2026.

In other calendars

Hebrew: 5133 / 5134 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 774 / 775 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Water zodiac:Ox
Sexagenary cycle position 50 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1916 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 751 / 752 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1365 / 1366 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1295 / 1294 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 4
Digit sum: 14
Digit product: 63
Digital root: 5
Palindrome: No
Bit width: 11 bits
Reversed: 3,731
Recamán's sequence: a(8,382) = 1,373
Square (n²): 1,885,129
Cube (n³): 2,588,282,117
Divisor count: 2
σ(n) — sum of divisors: 1,374
φ(n) — Euler's totient: 1,372

Primality

1,373 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 1373

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 1,373)

1 × 1373

First multiples

1,373 · 2,746 (double) · 4,119 · 5,492 · 6,865 · 8,238 · 9,611 · 10,984 · 12,357 · 13,730

Sums & aliquot sequence

As a sum of two squares: 2² + 37²

As consecutive integers: 686 + 687

Representations

In words: one thousand three hundred seventy-three
Ordinal: 1373rd
Roman numeral: MCCCLXXIII
Binary: 10101011101
Octal: 2535
Hexadecimal: 0x55D
Base64: BV0=
One's complement: 64,162 (16-bit)

In other bases

ternary (3) 1212212

quaternary (4) 111131

quinary (5) 20443

senary (6) 10205

septenary (7) 4001

nonary (9) 1785

undecimal (11) 1039

duodecimal (12) 965

tridecimal (13) 818

tetradecimal (14) 701

pentadecimal (15) 618

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): ͵ατογʹ
Mayan (base 20): 𝋣·𝋨·𝋭
Chinese: 一千三百七十三
Chinese (financial): 壹仟參佰柒拾參

In other modern scripts

Eastern Arabic ١٣٧٣ Devanagari १३७३ Bengali ১৩৭৩ Tamil ௧௩௭௩ Thai ๑๓๗๓ Tibetan ༡༣༧༣ Khmer ១៣៧៣ Lao ໑໓໗໓ Burmese ၁၃၇၃

Digit at this position in famous constants

π — Pi (π): Digit 1,373 = 4
e — Euler's number (e): Digit 1,373 = 6
φ — Golden ratio (φ): Digit 1,373 = 9
√2 — Pythagoras's (√2): Digit 1,373 = 4
ln 2 — Natural log of 2: Digit 1,373 = 5
γ — Euler-Mascheroni (γ): Digit 1,373 = 0

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 1,367 (gap of 6)
Next prime: 1,381 (gap of 8)

Pair status: sexy with 1367.

Unicode codepoint

Armenian Comma

U+055D

Other punctuation (Po)

UTF-8 encoding: D5 9D (2 bytes).

Lookup U+055D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00055D

RGB(0, 5, 93)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.93.

Address: 0.0.5.93
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.93

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

Position in π

The digit sequence 1373 first appears in π at position 10,886 of the decimal expansion (the 10,886ordinal-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 1373 on Pi Search ↗