358
358 is a composite number, even, a calendar year.
358 (three hundred fifty-eight) is an even 3-digit number. It is a composite number with 4 divisors, and factors as 2 × 179. Written other ways, in Roman numerals it is CCCLVIII and in binary, 101100110.
Interestingness
Historical context — 358 AD
Calendar year
Year 358 (CCCLVIII) was a common year starting on Thursday of the Julian calendar.
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Historical context — 358 BC
Calendar year
Year 358 BC was a year of the pre-Julian Roman 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
-
Wednesday
January 1, 358
- Ended on
-
Wednesday
December 31, 358
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
350s
350–359
- Century
-
4th century
301–400
- Millennium
-
1st millennium
1–1000
- Years ago
-
1,668
1668 years before 2026.
In other calendars
- Hebrew
-
4118 / 4119 AM
Rosh Hashanah falls in September/October.
- Chinese
-
Year of the zodiac:Earth zodiac:Horse
Sexagenary cycle position 55 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
901 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Ethiopian
-
350 / 351 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
280 / 279 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 179
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√358 = [18; (1, 11, 1, 1, 1, 3, 1, 1, 4, 1, 5, 2, 18, 2, 5, 1, 4, 1, 1, 3, 1, 1, 1, 11, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- three hundred fifty-eight
- Ordinal
- 358th
- Roman numeral
- CCCLVIII
- Binary
- 101100110
- Octal
- 546
- Hexadecimal
- 0x166
- Base64
- AWY=
- One's complement
- 65,177 (16-bit)
- Scientific notation
- 3.58 × 10²
- As a duration
- 358 s = 5 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- τνηʹ
- Mayan (base 20)
- 𝋱·𝋲
- Chinese
- 三百五十八
- Chinese (financial)
- 參佰伍拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 358 = 0
- e — Euler's number (e)
- Digit 358 = 3
- φ — Golden ratio (φ)
- Digit 358 = 7
- √2 — Pythagoras's (√2)
- Digit 358 = 1
- ln 2 — Natural log of 2
- Digit 358 = 1
- γ — Euler-Mascheroni (γ)
- Digit 358 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 358, here are decompositions:
- 5 + 353 = 358
- 11 + 347 = 358
- 41 + 317 = 358
- 47 + 311 = 358
- 89 + 269 = 358
- 101 + 257 = 358
- 107 + 251 = 358
- 131 + 227 = 358
Showing the first eight; more decompositions exist.
UTF-8 encoding: C5 A6 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.102.
- Address
- 0.0.1.102
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.1.102
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 358 Hz is closest to:
- Concert pitch (A4 = 440 Hz): F4 (349.2 Hz, +43¢)
- Scientific pitch (C4 = 256 Hz): F♯4 (362 Hz, -19¢)
- Baroque pitch (A4 = 415 Hz): F♯4 (349 Hz, +44¢)
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.