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11,180

11,180 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Abundant Number Arithmetic Number Evil Number Flippable Gapful Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
14 bits
Reversed
8,111
Flips to (rotate 180°)
8,111
Recamán's sequence
a(173,899) = 11,180
Square (n²)
124,992,400
Cube (n³)
1,397,415,032,000
Divisor count
24
σ(n) — sum of divisors
25,872
φ(n) — Euler's totient
4,032
Sum of prime factors
65

Primality

Prime factorization: 2 2 × 5 × 13 × 43

Nearest primes: 11,177 (−3) · 11,197 (+17)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 13 · 20 · 26 · 43 · 52 · 65 · 86 · 130 · 172 · 215 · 260 · 430 · 559 · 860 · 1118 · 2236 · 2795 · 5590 (half) · 11180
Aliquot sum (sum of proper divisors): 14,692
Factor pairs (a × b = 11,180)
1 × 11180
2 × 5590
4 × 2795
5 × 2236
10 × 1118
13 × 860
20 × 559
26 × 430
43 × 260
52 × 215
65 × 172
86 × 130
First multiples
11,180 · 22,360 (double) · 33,540 · 44,720 · 55,900 · 67,080 · 78,260 · 89,440 · 100,620 · 111,800

Sums & aliquot sequence

As consecutive integers: 2,234 + 2,235 + 2,236 + 2,237 + 2,238 1,394 + 1,395 + … + 1,401 854 + 855 + … + 866 260 + 261 + … + 299
Aliquot sequence: 11,180 14,692 11,026 6,074 3,040 4,520 5,740 8,372 10,444 10,500 24,444 46,900 71,148 141,120 423,522 682,398 834,162 — unresolved within range

Representations

In words
eleven thousand one hundred eighty
Ordinal
11180th
Binary
10101110101100
Octal
25654
Hexadecimal
0x2BAC
Base64
K6w=
One's complement
54,355 (16-bit)
In other bases
ternary (3) 120100002
quaternary (4) 2232230
quinary (5) 324210
senary (6) 123432
septenary (7) 44411
nonary (9) 16302
undecimal (11) 8444
duodecimal (12) 6578
tridecimal (13) 5120
tetradecimal (14) 4108
pentadecimal (15) 34a5

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιαρπʹ
Mayan (base 20)
𝋡·𝋧·𝋳·𝋠
Chinese
一萬一千一百八十
Chinese (financial)
壹萬壹仟壹佰捌拾
In other modern scripts
Eastern Arabic ١١١٨٠ Devanagari १११८० Bengali ১১১৮০ Tamil ௧௧௧௮௦ Thai ๑๑๑๘๐ Tibetan ༡༡༡༨༠ Khmer ១១១៨០ Lao ໑໑໑໘໐ Burmese ၁၁၁၈၀

Digit at this position in famous constants

π — Pi (π)
Digit 11,180 = 4
e — Euler's number (e)
Digit 11,180 = 0
φ — Golden ratio (φ)
Digit 11,180 = 4
√2 — Pythagoras's (√2)
Digit 11,180 = 5
ln 2 — Natural log of 2
Digit 11,180 = 2
γ — Euler-Mascheroni (γ)
Digit 11,180 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 11180, here are decompositions:

  • 3 + 11177 = 11180
  • 7 + 11173 = 11180
  • 19 + 11161 = 11180
  • 31 + 11149 = 11180
  • 61 + 11119 = 11180
  • 67 + 11113 = 11180
  • 97 + 11083 = 11180
  • 109 + 11071 = 11180

Showing the first eight; more decompositions exist.

Unicode codepoint
Black Curved Leftwards And Upwards Arrow
U+2BAC
Other symbol (So)

UTF-8 encoding: E2 AE AC (3 bytes).

Hex color
#002BAC
RGB(0, 43, 172)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.43.172.

Address
0.0.43.172
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.43.172

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

Position in π

The digit sequence 11180 first appears in π at position 151,909 of the decimal expansion (the 151,909ordinal-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.