Number

1,393

1,393 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Happy Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 1393 AD

Calendar year

Year 1393 (MCCCXCIII) was a common year starting on Wednesday of the Julian calendar.

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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: Tuesday
January 1, 1393
Ended on: Tuesday
December 31, 1393
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 1390s
1390–1399
Century: 14th century
1301–1400
Millennium: 2nd millennium
1001–2000
Years ago: 633
633 years before 2026.

In other calendars

Hebrew: 5153 / 5154 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 795 / 796 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: 1936 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 771 / 772 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1385 / 1386 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1315 / 1314 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 4
Digit sum: 16
Digit product: 81
Digital root: 7
Palindrome: No
Bit width: 11 bits
Reversed: 3,931
Recamán's sequence: a(8,342) = 1,393
Square (n²): 1,940,449
Cube (n³): 2,703,045,457
Divisor count: 4
σ(n) — sum of divisors: 1,600
φ(n) — Euler's totient: 1,188
Sum of prime factors: 206

Primality

Prime factorization: 7 × 199

Nearest primes: 1,381 (−12) · 1,399 (+6)

Divisors & multiples

All divisors (4)

1 · 7 · 199 · 1393

Aliquot sum (sum of proper divisors): 207

Factor pairs (a × b = 1,393)

1 × 1393

7 × 199

First multiples

1,393 · 2,786 (double) · 4,179 · 5,572 · 6,965 · 8,358 · 9,751 · 11,144 · 12,537 · 13,930

Sums & aliquot sequence

As consecutive integers: 696 + 697 196 + 197 + … + 202 93 + 94 + … + 106

Aliquot sequence: 1,393 → 207 → 105 → 87 → 33 → 15 → 9 → 4 → 3 → 1 → 0 — terminates at zero

Representations

In words: one thousand three hundred ninety-three
Ordinal: 1393rd
Roman numeral: MCCCXCIII
Binary: 10101110001
Octal: 2561
Hexadecimal: 0x571
Base64: BXE=
One's complement: 64,142 (16-bit)

In other bases

ternary (3) 1220121

quaternary (4) 111301

quinary (5) 21033

senary (6) 10241

septenary (7) 4030

nonary (9) 1817

undecimal (11) 1057

duodecimal (12) 981

tridecimal (13) 832

tetradecimal (14) 717

pentadecimal (15) 62d

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): ͵ατϟγʹ
Mayan (base 20): 𝋣·𝋩·𝋭
Chinese: 一千三百九十三
Chinese (financial): 壹仟參佰玖拾參

In other modern scripts

Eastern Arabic ١٣٩٣ Devanagari १३९३ Bengali ১৩৯৩ Tamil ௧௩௯௩ Thai ๑๓๙๓ Tibetan ༡༣༩༣ Khmer ១៣៩៣ Lao ໑໓໙໓ Burmese ၁၃၉၃

Digit at this position in famous constants

π — Pi (π): Digit 1,393 = 4
e — Euler's number (e): Digit 1,393 = 1
φ — Golden ratio (φ): Digit 1,393 = 2
√2 — Pythagoras's (√2): Digit 1,393 = 2
ln 2 — Natural log of 2: Digit 1,393 = 7
γ — Euler-Mascheroni (γ): Digit 1,393 = 8

Also seen as

Unicode codepoint

Armenian Small Letter Ja

U+0571

Lowercase letter (Ll)

UTF-8 encoding: D5 B1 (2 bytes).

Lookup U+0571 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000571

RGB(0, 5, 113)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.113.

Address: 0.0.5.113
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.113

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

Position in π

The digit sequence 1393 first appears in π at position 6,713 of the decimal expansion (the 6,713ordinal-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 1393 on Pi Search ↗