1,358
1,358 is a composite number, even, a calendar year.
Historical context — 1358 AD
Calendar year
Year 1358 (MCCCLVIII) was a common year starting on Monday 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
-
Sunday
January 1, 1358
- Ended on
-
Sunday
December 31, 1358
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1350s
1350–1359
- Century
-
14th century
1301–1400
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
668
668 years before 2026.
In other calendars
- Hebrew
-
5118 / 5119 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
759 / 760 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Dog
Sexagenary cycle position 35 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1901 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
736 / 737 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1350 / 1351 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1280 / 1279 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 17
- Digit product
- 120
- Digital root
- 8
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,531
- Recamán's sequence
- a(460) = 1,358
- Square (n²)
- 1,844,164
- Cube (n³)
- 2,504,374,712
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,352
- φ(n) — Euler's totient
- 576
- Sum of prime factors
- 106
Primality
Prime factorization: 2 × 7 × 97
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand three hundred fifty-eight
- Ordinal
- 1358th
- Roman numeral
- MCCCLVIII
- Binary
- 10101001110
- Octal
- 2516
- Hexadecimal
- 0x54E
- Base64
- BU4=
- One's complement
- 64,177 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ατνηʹ
- Mayan (base 20)
- 𝋣·𝋧·𝋲
- Chinese
- 一千三百五十八
- Chinese (financial)
- 壹仟參佰伍拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,358 = 4
- e — Euler's number (e)
- Digit 1,358 = 2
- φ — Golden ratio (φ)
- Digit 1,358 = 3
- √2 — Pythagoras's (√2)
- Digit 1,358 = 7
- ln 2 — Natural log of 2
- Digit 1,358 = 6
- γ — Euler-Mascheroni (γ)
- Digit 1,358 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1358, here are decompositions:
- 31 + 1327 = 1358
- 37 + 1321 = 1358
- 61 + 1297 = 1358
- 67 + 1291 = 1358
- 79 + 1279 = 1358
- 109 + 1249 = 1358
- 127 + 1231 = 1358
- 157 + 1201 = 1358
Showing the first eight; more decompositions exist.
UTF-8 encoding: D5 8E (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.78.
- Address
- 0.0.5.78
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.78
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1358 first appears in π at position 32,602 of the decimal expansion (the 32,602ordinal-suffix:nd 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.