1,051
1,051 is a prime, odd, a calendar year.
Historical context — 1051 AD
Calendar year
Year 1051 (MLI) was a common year starting on Tuesday 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
-
Wednesday
January 1, 1051
- Ended on
-
Wednesday
December 31, 1051
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1050s
1050–1059
- Century
-
11th century
1001–1100
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
975
975 years before 2026.
In other calendars
- Hebrew
-
4811 / 4812 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
442 / 443 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Metal zodiac:Rabbit
Sexagenary cycle position 28 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1594 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
429 / 430 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1043 / 1044 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
973 / 972 Saka
Indian national calendar; year starts in March.
Properties
Primality
1,051 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand fifty-one
- Ordinal
- 1051st
- Roman numeral
- MLI
- Binary
- 10000011011
- Octal
- 2033
- Hexadecimal
- 0x41B
- Base64
- BBs=
- One's complement
- 64,484 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆼𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵αναʹ
- Mayan (base 20)
- 𝋢·𝋬·𝋫
- Chinese
- 一千零五十一
- Chinese (financial)
- 壹仟零伍拾壹
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,051 = 2
- e — Euler's number (e)
- Digit 1,051 = 4
- φ — Golden ratio (φ)
- Digit 1,051 = 9
- √2 — Pythagoras's (√2)
- Digit 1,051 = 1
- ln 2 — Natural log of 2
- Digit 1,051 = 1
- γ — Euler-Mascheroni (γ)
- Digit 1,051 = 5
Also seen as
UTF-8 encoding: D0 9B (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.27.
- Address
- 0.0.4.27
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.27
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1051 first appears in π at position 442 of the decimal expansion (the 442ordinal-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.