1,558
1,558 is a composite number, even, a calendar year.
Notable events — 1558 AD
- Jan 7 The French capture Calais from England.
- Nov 17 Mary I dies; Elizabeth I becomes queen of England.
- Apr 24 Mary Queen of Scots marries the Dauphin, future Francis II of France.
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
-
Wednesday
January 1, 1558
- Ended on
-
Wednesday
December 31, 1558
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1550s
1550–1559
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
468
468 years before 2026.
In other calendars
- Hebrew
-
5318 / 5319 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
965 / 966 AH
Lunar calendar; year spans differ from Gregorian.
- 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
-
2101 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
936 / 937 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1550 / 1551 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1480 / 1479 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 19
- Digit product
- 200
- Digital root
- 1
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,551
- Recamán's sequence
- a(1,444) = 1,558
- Square (n²)
- 2,427,364
- Cube (n³)
- 3,781,833,112
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,520
- φ(n) — Euler's totient
- 720
- Sum of prime factors
- 62
Primality
Prime factorization: 2 × 19 × 41
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred fifty-eight
- Ordinal
- 1558th
- Roman numeral
- MDLVIII
- Binary
- 11000010110
- Octal
- 3026
- Hexadecimal
- 0x616
- Base64
- BhY=
- One's complement
- 63,977 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφνηʹ
- Mayan (base 20)
- 𝋣·𝋱·𝋲
- Chinese
- 一千五百五十八
- Chinese (financial)
- 壹仟伍佰伍拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,558 = 7
- e — Euler's number (e)
- Digit 1,558 = 0
- φ — Golden ratio (φ)
- Digit 1,558 = 7
- √2 — Pythagoras's (√2)
- Digit 1,558 = 0
- ln 2 — Natural log of 2
- Digit 1,558 = 5
- γ — Euler-Mascheroni (γ)
- Digit 1,558 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1558, here are decompositions:
- 5 + 1553 = 1558
- 47 + 1511 = 1558
- 59 + 1499 = 1558
- 71 + 1487 = 1558
- 107 + 1451 = 1558
- 131 + 1427 = 1558
- 149 + 1409 = 1558
- 191 + 1367 = 1558
Showing the first eight; more decompositions exist.
UTF-8 encoding: D8 96 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.22.
- Address
- 0.0.6.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.22
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1558 first appears in π at position 314 of the decimal expansion (the 314ordinal-suffix:th 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.