1,573
1,573 is a composite number, odd, a calendar year.
1,573 (one thousand five hundred seventy-three) is an odd 4-digit number. It is a composite number with 6 divisors, and factors as 11² × 13. Written other ways, in Roman numerals it is MDLXXIII and in binary, 11000100101.
Interestingness
Notable events — 1573 AD
- Aug 14 Henry of Anjou is elected King of Poland.
- Apr 30 Charles IX issues the Edict of Boulogne to end the fourth War of Religion.
- Undated Spain abandons the Adriatic claim, the seafaring Republic of Venice consolidates.
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
-
Monday
January 1, 1573
- Ended on
-
Monday
December 31, 1573
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1570s
1570–1579
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
453
453 years before 2026.
In other calendars
- Hebrew
-
5333 / 5334 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
980 / 981 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Rooster
Sexagenary cycle position 10 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2116 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
951 / 952 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1565 / 1566 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1495 / 1494 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 11 2 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,573 = [39; (1, 1, 1, 19, 6, 19, 1, 1, 1, 78)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- one thousand five hundred seventy-three
- Ordinal
- 1573rd
- Roman numeral
- MDLXXIII
- Binary
- 11000100101
- Octal
- 3045
- Hexadecimal
- 0x625
- Base64
- BiU=
- One's complement
- 63,962 (16-bit)
- Scientific notation
- 1.573 × 10³
- As a duration
- 1,573 s = 26 minutes, 13 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφογʹ
- Mayan (base 20)
- 𝋣·𝋲·𝋭
- Chinese
- 一千五百七十三
- Chinese (financial)
- 壹仟伍佰柒拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,573 = 1
- e — Euler's number (e)
- Digit 1,573 = 0
- φ — Golden ratio (φ)
- Digit 1,573 = 5
- √2 — Pythagoras's (√2)
- Digit 1,573 = 1
- ln 2 — Natural log of 2
- Digit 1,573 = 2
- γ — Euler-Mascheroni (γ)
- Digit 1,573 = 5
Also seen as
UTF-8 encoding: D8 A5 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.37.
- Address
- 0.0.6.37
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.37
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,573 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G6 (1568 Hz, +6¢)
- Scientific pitch (C4 = 256 Hz): G6 (1534.3 Hz, +43¢)
- Baroque pitch (A4 = 415 Hz): G♯6 (1566.8 Hz, +7¢)
The digit sequence 1573 first appears in π at position 1,657 of the decimal expansion (the 1,657ordinal-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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.