number.wiki
Number

1,071

1,071 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Harshad / Niven Heptagonal Recamán's Sequence Year

Notable events — 1071 AD

  1. Aug 26 The Seljuk Turks crush the Byzantines at Manzikert, opening Anatolia to Turkic settlement.

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
Sunday
January 1, 1071
Ended on
Sunday
December 31, 1071
Friday the 13ths
2
2 Friday the 13ths this year.
Decade
1070s
1070–1079
Century
11th century
1001–1100
Millennium
2nd millennium
1001–2000
Years ago
955
955 years before 2026.

In other calendars

Hebrew
4831 / 4832 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
463 / 464 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Metal zodiac:Pig
Sexagenary cycle position 48 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1614 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
449 / 450 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1063 / 1064 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
993 / 992 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
11 bits
Reversed
1,701
Recamán's sequence
a(4,277) = 1,071
Square (n²)
1,147,041
Cube (n³)
1,228,480,911
Divisor count
12
σ(n) — sum of divisors
1,872
φ(n) — Euler's totient
576
Sum of prime factors
30

Primality

Prime factorization: 3 2 × 7 × 17

Nearest primes: 1,069 (−2) · 1,087 (+16)

Divisors & multiples

All divisors (12)
1 · 3 · 7 · 9 · 17 · 21 · 51 · 63 · 119 · 153 · 357 · 1071
Aliquot sum (sum of proper divisors): 801
Factor pairs (a × b = 1,071)
1 × 1071
3 × 357
7 × 153
9 × 119
17 × 63
21 × 51
First multiples
1,071 · 2,142 (double) · 3,213 · 4,284 · 5,355 · 6,426 · 7,497 · 8,568 · 9,639 · 10,710

Sums & aliquot sequence

As consecutive integers: 535 + 536 356 + 357 + 358 176 + 177 + 178 + 179 + 180 + 181 150 + 151 + … + 156
Aliquot sequence: 1,071 801 369 177 63 41 1 0 — terminates at zero

Representations

In words
one thousand seventy-one
Ordinal
1071st
Roman numeral
MLXXI
Binary
10000101111
Octal
2057
Hexadecimal
0x42F
Base64
BC8=
One's complement
64,464 (16-bit)
In other bases
ternary (3) 1110200
quaternary (4) 100233
quinary (5) 13241
senary (6) 4543
septenary (7) 3060
nonary (9) 1420
undecimal (11) 894
duodecimal (12) 753
tridecimal (13) 645
tetradecimal (14) 567
pentadecimal (15) 4b6

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵αοαʹ
Mayan (base 20)
𝋢·𝋭·𝋫
Chinese
一千零七十一
Chinese (financial)
壹仟零柒拾壹
In other modern scripts
Eastern Arabic ١٠٧١ Devanagari १०७१ Bengali ১০৭১ Tamil ௧௦௭௧ Thai ๑๐๗๑ Tibetan ༡༠༧༡ Khmer ១០៧១ Lao ໑໐໗໑ Burmese ၁၀၇၁

Digit at this position in famous constants

π — Pi (π)
Digit 1,071 = 2
e — Euler's number (e)
Digit 1,071 = 5
φ — Golden ratio (φ)
Digit 1,071 = 5
√2 — Pythagoras's (√2)
Digit 1,071 = 1
ln 2 — Natural log of 2
Digit 1,071 = 7
γ — Euler-Mascheroni (γ)
Digit 1,071 = 1

Also seen as

Unicode codepoint
Я
Cyrillic Capital Letter Ya
U+042F
Uppercase letter (Lu)

UTF-8 encoding: D0 AF (2 bytes).

Hex color
#00042F
RGB(0, 4, 47)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.47.

Address
0.0.4.47
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.4.47

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

Position in π

The digit sequence 1071 first appears in π at position 7,693 of the decimal expansion (the 7,693ordinal-suffix:rd 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.