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11,800

11,800 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 Evil Number Flippable Gapful Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
14 bits
Reversed
811
Flips to (rotate 180°)
811
Recamán's sequence
a(23,184) = 11,800
Square (n²)
139,240,000
Cube (n³)
1,643,032,000,000
Divisor count
24
σ(n) — sum of divisors
27,900
φ(n) — Euler's totient
4,640
Sum of prime factors
75

Primality

Prime factorization: 2 3 × 5 2 × 59

Nearest primes: 11,789 (−11) · 11,801 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 25 · 40 · 50 · 59 · 100 · 118 · 200 · 236 · 295 · 472 · 590 · 1180 · 1475 · 2360 · 2950 · 5900 (half) · 11800
Aliquot sum (sum of proper divisors): 16,100
Factor pairs (a × b = 11,800)
1 × 11800
2 × 5900
4 × 2950
5 × 2360
8 × 1475
10 × 1180
20 × 590
25 × 472
40 × 295
50 × 236
59 × 200
100 × 118
First multiples
11,800 · 23,600 (double) · 35,400 · 47,200 · 59,000 · 70,800 · 82,600 · 94,400 · 106,200 · 118,000

Sums & aliquot sequence

As consecutive integers: 2,358 + 2,359 + 2,360 + 2,361 + 2,362 730 + 731 + … + 745 460 + 461 + … + 484 171 + 172 + … + 229
Aliquot sequence: 11,800 16,100 25,564 30,884 30,940 53,732 60,508 60,564 105,420 233,268 389,004 745,332 1,351,308 2,252,404 2,779,532 2,887,444 2,887,500 — unresolved within range

Representations

In words
eleven thousand eight hundred
Ordinal
11800th
Binary
10111000011000
Octal
27030
Hexadecimal
0x2E18
Base64
Lhg=
One's complement
53,735 (16-bit)
In other bases
ternary (3) 121012001
quaternary (4) 2320120
quinary (5) 334200
senary (6) 130344
septenary (7) 46255
nonary (9) 17161
undecimal (11) 8958
duodecimal (12) 69b4
tridecimal (13) 54a9
tetradecimal (14) 442c
pentadecimal (15) 376a

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
Greek (Milesian)
͵ιαωʹ
Mayan (base 20)
𝋡·𝋩·𝋪·𝋠
Chinese
一萬一千八百
Chinese (financial)
壹萬壹仟捌佰
In other modern scripts
Eastern Arabic ١١٨٠٠ Devanagari ११८०० Bengali ১১৮০০ Tamil ௧௧௮௦௦ Thai ๑๑๘๐๐ Tibetan ༡༡༨༠༠ Khmer ១១៨០០ Lao ໑໑໘໐໐ Burmese ၁၁၈၀၀

Digit at this position in famous constants

π — Pi (π)
Digit 11,800 = 7
e — Euler's number (e)
Digit 11,800 = 4
φ — Golden ratio (φ)
Digit 11,800 = 0
√2 — Pythagoras's (√2)
Digit 11,800 = 1
ln 2 — Natural log of 2
Digit 11,800 = 2
γ — Euler-Mascheroni (γ)
Digit 11,800 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 11800, here are decompositions:

  • 11 + 11789 = 11800
  • 17 + 11783 = 11800
  • 23 + 11777 = 11800
  • 83 + 11717 = 11800
  • 101 + 11699 = 11800
  • 167 + 11633 = 11800
  • 179 + 11621 = 11800
  • 251 + 11549 = 11800

Showing the first eight; more decompositions exist.

Unicode codepoint
Inverted Interrobang
U+2E18
Other punctuation (Po)

UTF-8 encoding: E2 B8 98 (3 bytes).

Hex color
#002E18
RGB(0, 46, 24)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.46.24.

Address
0.0.46.24
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.46.24

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

Position in π

The digit sequence 11800 first appears in π at position 203,081 of the decimal expansion (the 203,081ordinal-suffix:st 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.