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Number

1,055

1,055 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 1055 AD

Calendar year

1055 (MLV) was a common year starting on Sunday 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
Monday
January 1, 1055
Ended on
Monday
December 31, 1055
Friday the 13ths
2
2 Friday the 13ths this year.
Decade
1050s
1050–1059
Century
11th century
1001–1100
Millennium
2nd millennium
1001–2000
Years ago
971
971 years before 2026.

In other calendars

Hebrew
4815 / 4816 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
446 / 447 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Wood zodiac:Goat
Sexagenary cycle position 32 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1598 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
433 / 434 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1047 / 1048 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
977 / 976 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
11 bits
Reversed
5,501
Recamán's sequence
a(4,309) = 1,055
Square (n²)
1,113,025
Cube (n³)
1,174,241,375
Divisor count
4
σ(n) — sum of divisors
1,272
φ(n) — Euler's totient
840
Sum of prime factors
216

Primality

Prime factorization: 5 × 211

Nearest primes: 1,051 (−4) · 1,061 (+6)

Divisors & multiples

All divisors (4)
1 · 5 · 211 · 1055
Aliquot sum (sum of proper divisors): 217
Factor pairs (a × b = 1,055)
1 × 1055
5 × 211
First multiples
1,055 · 2,110 (double) · 3,165 · 4,220 · 5,275 · 6,330 · 7,385 · 8,440 · 9,495 · 10,550

Sums & aliquot sequence

As consecutive integers: 527 + 528 209 + 210 + 211 + 212 + 213 101 + 102 + … + 110
Aliquot sequence: 1,055 217 39 17 1 0 — terminates at zero

Representations

In words
one thousand fifty-five
Ordinal
1055th
Roman numeral
MLV
Binary
10000011111
Octal
2037
Hexadecimal
0x41F
Base64
BB8=
One's complement
64,480 (16-bit)
In other bases
ternary (3) 1110002
quaternary (4) 100133
quinary (5) 13210
senary (6) 4515
septenary (7) 3035
nonary (9) 1402
undecimal (11) 87a
duodecimal (12) 73b
tridecimal (13) 632
tetradecimal (14) 555
pentadecimal (15) 4a5

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ανεʹ
Mayan (base 20)
𝋢·𝋬·𝋯
Chinese
一千零五十五
Chinese (financial)
壹仟零伍拾伍
In other modern scripts
Eastern Arabic ١٠٥٥ Devanagari १०५५ Bengali ১০৫৫ Tamil ௧௦௫௫ Thai ๑๐๕๕ Tibetan ༡༠༥༥ Khmer ១០៥៥ Lao ໑໐໕໕ Burmese ၁၀၅၅

Digit at this position in famous constants

π — Pi (π)
Digit 1,055 = 3
e — Euler's number (e)
Digit 1,055 = 0
φ — Golden ratio (φ)
Digit 1,055 = 2
√2 — Pythagoras's (√2)
Digit 1,055 = 1
ln 2 — Natural log of 2
Digit 1,055 = 8
γ — Euler-Mascheroni (γ)
Digit 1,055 = 8

Also seen as

Unicode codepoint
П
Cyrillic Capital Letter Pe
U+041F
Uppercase letter (Lu)

UTF-8 encoding: D0 9F (2 bytes).

Hex color
#00041F
RGB(0, 4, 31)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.31.

Address
0.0.4.31
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.4.31

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 1055 first appears in π at position 175 of the decimal expansion (the 175ordinal-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.