Number

368

368 is a composite number, even, a calendar year.

Abundant Number Ascending Digits Evil Number Happy Number Practical Number Recamán's Sequence Semiperfect Number Year

Historical context — 368 AD

Calendar year

Year 368 (CCCLXVIII) was a leap year starting on Tuesday of the Julian calendar.

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Historical context — 368 BC

Calendar year

Year 368 BC was a year of the pre-Julian Roman calendar.

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

Year facts

Year type: Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year: 366
ISO weeks: 52
Started on: Monday
January 1, 368
Ended on: Tuesday
December 31, 368
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 360s
360–369
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,658
1658 years before 2026.

In other calendars

Hebrew: 4128 / 4129 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Earth zodiac:Dragon
Sexagenary cycle position 5 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 911 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 360 / 361 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 290 / 289 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 17
Digit product: 144
Digital root: 8
Palindrome: No
Bit width: 9 bits
Reversed: 863
Recamán's sequence: a(104) = 368
Square (n²): 135,424
Cube (n³): 49,836,032
Divisor count: 10
σ(n) — sum of divisors: 744
φ(n) — Euler's totient: 176
Sum of prime factors: 31

Primality

Prime factorization: 2 ⁴ × 23

Nearest primes: 367 (−1) · 373 (+5)

Divisors & multiples

All divisors (10)

1 · 2 · 4 · 8 · 16 · 23 · 46 · 92 · 184 (half) · 368

Aliquot sum (sum of proper divisors): 376

Factor pairs (a × b = 368)

1 × 368

2 × 184

4 × 92

8 × 46

16 × 23

First multiples

368 · 736 (double) · 1,104 · 1,472 · 1,840 · 2,208 · 2,576 · 2,944 · 3,312 · 3,680

Sums & aliquot sequence

As consecutive integers: 5 + 6 + … + 27

Aliquot sequence: 368 → 376 → 344 → 316 → 244 → 190 → 170 → 154 → 134 → 70 → 74 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: three hundred sixty-eight
Ordinal: 368th
Roman numeral: CCCLXVIII
Binary: 101110000
Octal: 560
Hexadecimal: 0x170
Base64: AXA=
One's complement: 65,167 (16-bit)

In other bases

ternary (3) 111122

quaternary (4) 11300

quinary (5) 2433

senary (6) 1412

septenary (7) 1034

nonary (9) 448

undecimal (11) 305

duodecimal (12) 268

tridecimal (13) 224

tetradecimal (14) 1c4

pentadecimal (15) 198

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): τξηʹ
Mayan (base 20): 𝋲·𝋨
Chinese: 三百六十八
Chinese (financial): 參佰陸拾捌

In other modern scripts

Eastern Arabic ٣٦٨ Devanagari ३६८ Bengali ৩৬৮ Tamil ௩௬௮ Thai ๓๖๘ Tibetan ༣༦༨ Khmer ៣៦៨ Lao ໓໖໘ Burmese ၃၆၈

Digit at this position in famous constants

π — Pi (π): Digit 368 = 5
e — Euler's number (e): Digit 368 = 7
φ — Golden ratio (φ): Digit 368 = 5
√2 — Pythagoras's (√2): Digit 368 = 2
ln 2 — Natural log of 2: Digit 368 = 1
γ — Euler-Mascheroni (γ): Digit 368 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 368, here are decompositions:

19 + 349 = 368
31 + 337 = 368
37 + 331 = 368
61 + 307 = 368
97 + 271 = 368
127 + 241 = 368
139 + 229 = 368
157 + 211 = 368

Showing the first eight; more decompositions exist.

Unicode codepoint

Latin Capital Letter U With Double Acute

U+0170

Uppercase letter (Lu)

UTF-8 encoding: C5 B0 (2 bytes).

Lookup U+0170 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000170

RGB(0, 1, 112)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.112.

Address: 0.0.1.112
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.112

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

NANP area code 368

The number 368 is an active NANP area code (North American Numbering Plan).

Primary area: Statewide
Region: Alberta
Country: Canada

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 368 ↗