Number

350

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

350 (three hundred fifty) is an even 3-digit number. It is a composite number with 12 divisors, and factors as 2 × 5² × 7. Its proper divisors sum to 394, more than the number itself, making it an abundant number. Written other ways, in Roman numerals it is CCCL and in binary, 101011110.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number Year

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362

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Historical context — 350 AD

Calendar year

Year 350 (CCCL) was a common year starting on Monday of the Julian calendar.

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

Historical context — 350 BC

Calendar year

Year 350 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 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: Sunday
January 1, 350
Ended on: Sunday
December 31, 350
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 350s
350–359
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,676
1676 years before 2026.

In other calendars

Hebrew: 4110 / 4111 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Metal zodiac:Dog
Sexagenary cycle position 47 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 893 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 342 / 343 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 272 / 271 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 8
Digit product: 0
Digital root: 8
Palindrome: No
Bit width: 9 bits
Reversed: 53
Recamán's sequence: a(548) = 350
Square (n²): 122,500
Cube (n³): 42,875,000
Divisor count: 12
σ(n) — sum of divisors: 744
φ(n) — Euler's totient: 120
Sum of prime factors: 19

Primality

Prime factorization: 2 × 5 ² × 7

Nearest primes: 349 (−1) · 353 (+3)

Divisors & multiples

All divisors (12)

1 · 2 · 5 · 7 · 10 · 14 · 25 · 35 · 50 · 70 · 175 (half) · 350

Aliquot sum (sum of proper divisors): 394

Factor pairs (a × b = 350)

1 × 350

2 × 175

5 × 70

7 × 50

10 × 35

14 × 25

First multiples

350 · 700 (double) · 1,050 · 1,400 · 1,750 · 2,100 · 2,450 · 2,800 · 3,150 · 3,500

Sums & aliquot sequence

As consecutive integers: 86 + 87 + 88 + 89 68 + 69 + 70 + 71 + 72 47 + 48 + … + 53 8 + 9 + … + 27

Aliquot sequence: 350 → 394 → 200 → 265 → 59 → 1 → 0 — terminates at zero

Continued fraction of √n

√350 = [18; (1, 2, 2, 2, 1, 36)]

Period length 6 — the block in parentheses repeats forever.

Representations

In words: three hundred fifty
Ordinal: 350th
Roman numeral: CCCL
Binary: 101011110
Octal: 536
Hexadecimal: 0x15E
Base64: AV4=
One's complement: 65,185 (16-bit)
Scientific notation: 3.5 × 10²
As a duration: 350 s = 5 minutes, 50 seconds

In other bases

ternary (3) 110222

quaternary (4) 11132

quinary (5) 2400

senary (6) 1342

septenary (7) 1010

nonary (9) 428

undecimal (11) 299

duodecimal (12) 252

tridecimal (13) 20c

tetradecimal (14) 1b0

pentadecimal (15) 185

Palindromic in base 12

As an angle

350°

350° ≈ 6.109 rad

Compass bearing: N (north)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆
Greek (Milesian): τνʹ
Mayan (base 20): 𝋱·𝋪
Chinese: 三百五十
Chinese (financial): 參佰伍拾

In other modern scripts

Eastern Arabic ٣٥٠ Devanagari ३५० Bengali ৩৫০ Tamil ௩௫௦ Thai ๓๕๐ Tibetan ༣༥༠ Khmer ៣៥០ Lao ໓໕໐ Burmese ၃၅၀

Digit at this position in famous constants

π — Pi (π): Digit 350 = 3
e — Euler's number (e): Digit 350 = 6
φ — Golden ratio (φ): Digit 350 = 2
√2 — Pythagoras's (√2): Digit 350 = 2
ln 2 — Natural log of 2: Digit 350 = 9
γ — Euler-Mascheroni (γ): Digit 350 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 350, here are decompositions:

3 + 347 = 350
13 + 337 = 350
19 + 331 = 350
37 + 313 = 350
43 + 307 = 350
67 + 283 = 350
73 + 277 = 350
79 + 271 = 350

Showing the first eight; more decompositions exist.

Unicode codepoint

Latin Capital Letter S With Cedilla

U+015E

Uppercase letter (Lu)

UTF-8 encoding: C5 9E (2 bytes).

Lookup U+015E on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00015E

RGB(0, 1, 94)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.94.

Address: 0.0.1.94
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.94

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

Musical pitch

Heard as a frequency, 350 Hz is closest to:

Concert pitch (A4 = 440 Hz): F4 (349.2 Hz, +4¢)
Scientific pitch (C4 = 256 Hz): F4 (341.7 Hz, +41¢)
Baroque pitch (A4 = 415 Hz): F♯4 (349 Hz, +5¢)