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188,042

188,042 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.).

188,042 (one hundred eighty-eight thousand forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 167 × 563. Written other ways, in hexadecimal, 0x2DE8A.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
240,881
Recamán's sequence
a(169,796) = 188,042
Square (n²)
35,359,793,764
Cube (n³)
6,649,126,338,970,088
Divisor count
8
σ(n) — sum of divisors
284,256
φ(n) — Euler's totient
93,292
Sum of prime factors
732

Primality

Prime factorization: 2 × 167 × 563

Nearest primes: 188,029 (−13) · 188,107 (+65)

Divisors & multiples

All divisors (8)
1 · 2 · 167 · 334 · 563 · 1126 · 94021 (half) · 188042
Aliquot sum (sum of proper divisors): 96,214
Factor pairs (a × b = 188,042)
1 × 188042
2 × 94021
167 × 1126
334 × 563
First multiples
188,042 · 376,084 (double) · 564,126 · 752,168 · 940,210 · 1,128,252 · 1,316,294 · 1,504,336 · 1,692,378 · 1,880,420

Sums & aliquot sequence

As consecutive integers: 47,009 + 47,010 + 47,011 + 47,012 1,043 + 1,044 + … + 1,209 53 + 54 + … + 615
Aliquot sequence: 188,042 → 96,214 → 50,306 → 25,156 → 21,324 → 28,460 → 31,348 → 26,864 → 28,192 → 27,374 → 13,690 → 11,636 → 8,734 → 5,594 → 2,800 → 4,888 → 5,192 — unresolved within range

Continued fraction of √n

√188,042 = [433; (1, 1, 1, 3, 4, 2, 32, 1, 10, 123, 1, 4, 7, 6, 1, 2, 4, 2, 2, 2, 6, 17, 1, 1, …)]

Representations

In words
one hundred eighty-eight thousand forty-two
Ordinal
188042nd
Binary
101101111010001010
Octal
557212
Hexadecimal
0x2DE8A
Base64
At6K
One's complement
4,294,779,253 (32-bit)
Scientific notation
1.88042 × 10⁵
As a duration
188,042 s = 2 days, 4 hours, 14 minutes, 2 seconds
In other bases
ternary (3) 100112221112
quaternary (4) 231322022
quinary (5) 22004132
senary (6) 4010322
septenary (7) 1412141
nonary (9) 315845
undecimal (11) 119308
duodecimal (12) 909a2
tridecimal (13) 6778a
tetradecimal (14) 4c758
pentadecimal (15) 3aab2
Palindromic in base 7

As an angle

188,042° = 522 × 360° + 122°
122° ≈ 2.129 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ρπημβʹ
Chinese
十八萬八千零四十二
Chinese (financial)
壹拾捌萬捌仟零肆拾貳
In other modern scripts
Eastern Arabic ١٨٨٠٤٢ Devanagari १८८०४२ Bengali ১৮৮০৪২ Tamil ௧௮௮௦௪௨ Thai ๑๘๘๐๔๒ Tibetan ༡༨༨༠༤༢ Khmer ១៨៨០៤២ Lao ໑໘໘໐໔໒ Burmese ၁၈၈၀၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 188042, here are decompositions:

  • 13 + 188029 = 188042
  • 31 + 188011 = 188042
  • 79 + 187963 = 188042
  • 181 + 187861 = 188042
  • 199 + 187843 = 188042
  • 331 + 187711 = 188042
  • 373 + 187669 = 188042
  • 409 + 187633 = 188042

Showing the first eight; more decompositions exist.

Unicode codepoint
𭺊
CJK Unified Ideograph-2De8A
U+2DE8A
Other letter (Lo)

UTF-8 encoding: F0 AD BA 8A (4 bytes).

Hex color
#02DE8A
RGB(2, 222, 138)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.222.138.

Address
0.2.222.138
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.222.138

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 188,042 and was likely granted around 1875.

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

Position in π

The digit sequence 188042 first appears in π at position 612,522 of the decimal expansion (the 612,522ordinal-suffix:nd 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.

Related reading

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