Number

371

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

Arithmetic Number Deficient Number Evil Number Narcissistic / Armstrong Recamán's Sequence Semiprime Squarefree Year

Historical context — 371 AD

Calendar year

Year 371 (CCCLXXI) 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 →

Notable events — 371 BC

Jul 6 Thebes under Epaminondas crushes Sparta at the Battle of Leuctra.

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: Friday
January 1, 371
Ended on: Friday
December 31, 371
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 370s
370–379
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,655
1655 years before 2026.

In other calendars

Hebrew: 4131 / 4132 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Metal zodiac:Goat
Sexagenary cycle position 8 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 914 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 363 / 364 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 293 / 292 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 11
Digit product: 21
Digital root: 2
Palindrome: No
Bit width: 9 bits
Reversed: 173
Recamán's sequence: a(4,825) = 371
Square (n²): 137,641
Cube (n³): 51,064,811
Divisor count: 4
σ(n) — sum of divisors: 432
φ(n) — Euler's totient: 312
Sum of prime factors: 60

Primality

Prime factorization: 7 × 53

Nearest primes: 367 (−4) · 373 (+2)

Divisors & multiples

All divisors (4)

1 · 7 · 53 · 371

Aliquot sum (sum of proper divisors): 61

Factor pairs (a × b = 371)

1 × 371

7 × 53

First multiples

371 · 742 (double) · 1,113 · 1,484 · 1,855 · 2,226 · 2,597 · 2,968 · 3,339 · 3,710

Sums & aliquot sequence

As consecutive integers: 185 + 186 50 + 51 + … + 56 20 + 21 + … + 33

Aliquot sequence: 371 → 61 → 1 → 0 — terminates at zero

Representations

In words: three hundred seventy-one
Ordinal: 371st
Roman numeral: CCCLXXI
Binary: 101110011
Octal: 563
Hexadecimal: 0x173
Base64: AXM=
One's complement: 65,164 (16-bit)

In other bases

ternary (3) 111202

quaternary (4) 11303

quinary (5) 2441

senary (6) 1415

septenary (7) 1040

nonary (9) 452

undecimal (11) 308

duodecimal (12) 26b

tridecimal (13) 227

tetradecimal (14) 1c7

pentadecimal (15) 19b

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): τοαʹ
Mayan (base 20): 𝋲·𝋫
Chinese: 三百七十一
Chinese (financial): 參佰柒拾壹

In other modern scripts

Eastern Arabic ٣٧١ Devanagari ३७१ Bengali ৩৭১ Tamil ௩௭௧ Thai ๓๗๑ Tibetan ༣༧༡ Khmer ៣៧១ Lao ໓໗໑ Burmese ၃၇၁

Digit at this position in famous constants

π — Pi (π): Digit 371 = 5
e — Euler's number (e): Digit 371 = 1
φ — Golden ratio (φ): Digit 371 = 4
√2 — Pythagoras's (√2): Digit 371 = 3
ln 2 — Natural log of 2: Digit 371 = 2
γ — Euler-Mascheroni (γ): Digit 371 = 0

Also seen as

Unicode codepoint

Latin Small Letter U With Ogonek

U+0173

Lowercase letter (Ll)

UTF-8 encoding: C5 B3 (2 bytes).

Lookup U+0173 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000173

RGB(0, 1, 115)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.115.

Address: 0.0.1.115
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.115

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