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42,086

42,086 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.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
16 bits
Reversed
68,024
Recamán's sequence
a(151,451) = 42,086
Square (n²)
1,771,231,396
Cube (n³)
74,544,044,532,056
Divisor count
8
σ(n) — sum of divisors
68,904
φ(n) — Euler's totient
19,120
Sum of prime factors
1,926

Primality

Prime factorization: 2 × 11 × 1913

Nearest primes: 42,083 (−3) · 42,089 (+3)

Divisors & multiples

All divisors (8)
1 · 2 · 11 · 22 · 1913 · 3826 · 21043 (half) · 42086
Aliquot sum (sum of proper divisors): 26,818
Factor pairs (a × b = 42,086)
1 × 42086
2 × 21043
11 × 3826
22 × 1913
First multiples
42,086 · 84,172 (double) · 126,258 · 168,344 · 210,430 · 252,516 · 294,602 · 336,688 · 378,774 · 420,860

Sums & aliquot sequence

As consecutive integers: 10,520 + 10,521 + 10,522 + 10,523 3,821 + 3,822 + … + 3,831 935 + 936 + … + 978
Aliquot sequence: 42,086 26,818 19,838 17,122 12,254 7,834 3,920 6,682 4,154 2,374 1,190 1,402 704 820 944 916 694 — unresolved within range

Representations

In words
forty-two thousand eighty-six
Ordinal
42086th
Binary
1010010001100110
Octal
122146
Hexadecimal
0xA466
Base64
pGY=
One's complement
23,449 (16-bit)
In other bases
ternary (3) 2010201202
quaternary (4) 22101212
quinary (5) 2321321
senary (6) 522502
septenary (7) 233462
nonary (9) 63652
undecimal (11) 29690
duodecimal (12) 20432
tridecimal (13) 16205
tetradecimal (14) 114a2
pentadecimal (15) c70b

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβπϛʹ
Mayan (base 20)
𝋥·𝋥·𝋤·𝋦
Chinese
四萬二千零八十六
Chinese (financial)
肆萬貳仟零捌拾陸
In other modern scripts
Eastern Arabic ٤٢٠٨٦ Devanagari ४२०८६ Bengali ৪২০৮৬ Tamil ௪௨௦௮௬ Thai ๔๒๐๘๖ Tibetan ༤༢༠༨༦ Khmer ៤២០៨៦ Lao ໔໒໐໘໖ Burmese ၄၂၀၈၆

Digit at this position in famous constants

π — Pi (π)
Digit 42,086 = 7
e — Euler's number (e)
Digit 42,086 = 9
φ — Golden ratio (φ)
Digit 42,086 = 7
√2 — Pythagoras's (√2)
Digit 42,086 = 7
ln 2 — Natural log of 2
Digit 42,086 = 3
γ — Euler-Mascheroni (γ)
Digit 42,086 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42086, here are decompositions:

  • 3 + 42083 = 42086
  • 13 + 42073 = 42086
  • 43 + 42043 = 42086
  • 67 + 42019 = 42086
  • 73 + 42013 = 42086
  • 103 + 41983 = 42086
  • 127 + 41959 = 42086
  • 139 + 41947 = 42086

Showing the first eight; more decompositions exist.

Unicode codepoint
Yi Syllable Xuo
U+A466
Other letter (Lo)

UTF-8 encoding: EA 91 A6 (3 bytes).

Hex color
#00A466
RGB(0, 164, 102)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.102.

Address
0.0.164.102
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.164.102

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

Position in π

The digit sequence 42086 first appears in π at position 35,357 of the decimal expansion (the 35,357ordinal-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.