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188,118

188,118 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.).

188,118 (one hundred eighty-eight thousand one hundred eighteen) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 7 × 1,493. Its proper divisors sum to 278,010, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2DED6.

Abundant Number Arithmetic Number Cube-Free Evil Number Flippable Gapful Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
27
Digit product
512
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
811,881
Flips to (rotate 180°)
811,881
Recamán's sequence
a(81,376) = 188,118
Square (n²)
35,388,381,924
Cube (n³)
6,657,191,630,779,032
Divisor count
24
σ(n) — sum of divisors
466,128
φ(n) — Euler's totient
53,712
Sum of prime factors
1,508

Primality

Prime factorization: 2 × 3 2 × 7 × 1493

Nearest primes: 188,107 (−11) · 188,137 (+19)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 7 · 9 · 14 · 18 · 21 · 42 · 63 · 126 · 1493 · 2986 · 4479 · 8958 · 10451 · 13437 · 20902 · 26874 · 31353 · 62706 · 94059 (half) · 188118
Aliquot sum (sum of proper divisors): 278,010
Factor pairs (a × b = 188,118)
1 × 188118
2 × 94059
3 × 62706
6 × 31353
7 × 26874
9 × 20902
14 × 13437
18 × 10451
21 × 8958
42 × 4479
63 × 2986
126 × 1493
First multiples
188,118 · 376,236 (double) · 564,354 · 752,472 · 940,590 · 1,128,708 · 1,316,826 · 1,504,944 · 1,693,062 · 1,881,180

Sums & aliquot sequence

As consecutive integers: 62,705 + 62,706 + 62,707 47,028 + 47,029 + 47,030 + 47,031 26,871 + 26,872 + … + 26,877 20,898 + 20,899 + … + 20,906
Aliquot sequence: 188,118 → 278,010 → 445,050 → 831,654 → 1,016,586 → 1,186,056 → 2,497,944 → 4,205,256 → 7,951,224 → 11,926,896 → 18,884,376 → 40,364,424 → 68,956,086 → 73,228,362 → 73,228,374 → 90,857,790 → 145,372,698 — unresolved within range

Continued fraction of √n

√188,118 = [433; (1, 2, 1, 1, 1, 4, 1, 2, 5, 1, 1, 2, 2, 1, 2, 1, 1, 12, 2, 1, 2, 2, 4, 19, …)]

Representations

In words
one hundred eighty-eight thousand one hundred eighteen
Ordinal
188118th
Binary
101101111011010110
Octal
557326
Hexadecimal
0x2DED6
Base64
At7W
One's complement
4,294,779,177 (32-bit)
Scientific notation
1.88118 × 10⁵
As a duration
188,118 s = 2 days, 4 hours, 15 minutes, 18 seconds
In other bases
ternary (3) 100120001100
quaternary (4) 231323112
quinary (5) 22004433
senary (6) 4010530
septenary (7) 1412310
nonary (9) 316040
undecimal (11) 119377
duodecimal (12) 90a46
tridecimal (13) 67818
tetradecimal (14) 4c7b0
pentadecimal (15) 3ab13

As an angle

188,118° = 522 × 360° + 198°
198° ≈ 3.456 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρπηριηʹ
Chinese
十八萬八千一百一十八
Chinese (financial)
壹拾捌萬捌仟壹佰壹拾捌
In other modern scripts
Eastern Arabic ١٨٨١١٨ Devanagari १८८११८ Bengali ১৮৮১১৮ Tamil ௧௮௮௧௧௮ Thai ๑๘๘๑๑๘ Tibetan ༡༨༨༡༡༨ Khmer ១៨៨១១៨ Lao ໑໘໘໑໑໘ Burmese ၁၈၈၁၁၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 188118, here are decompositions:

  • 11 + 188107 = 188118
  • 89 + 188029 = 188118
  • 97 + 188021 = 188118
  • 101 + 188017 = 188118
  • 107 + 188011 = 188118
  • 131 + 187987 = 188118
  • 167 + 187951 = 188118
  • 191 + 187927 = 188118

Showing the first eight; more decompositions exist.

Unicode codepoint
𭻖
CJK Unified Ideograph-2Ded6
U+2DED6
Other letter (Lo)

UTF-8 encoding: F0 AD BB 96 (4 bytes).

Hex color
#02DED6
RGB(2, 222, 214)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.222.214.

Address
0.2.222.214
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.222.214

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 188,118 and was likely granted around 1875.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.