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26,842

26,842 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.).
Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
22
Digit product
768
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
24,862
Recamán's sequence
a(164,007) = 26,842
Square (n²)
720,492,964
Cube (n³)
19,339,472,139,688
Divisor count
4
σ(n) — sum of divisors
40,266
φ(n) — Euler's totient
13,420
Sum of prime factors
13,423

Primality

Prime factorization: 2 × 13421

Nearest primes: 26,839 (−3) · 26,849 (+7)

Divisors & multiples

All divisors (4)
1 · 2 · 13421 (half) · 26842
Aliquot sum (sum of proper divisors): 13,424
Factor pairs (a × b = 26,842)
1 × 26842
2 × 13421
First multiples
26,842 · 53,684 (double) · 80,526 · 107,368 · 134,210 · 161,052 · 187,894 · 214,736 · 241,578 · 268,420

Sums & aliquot sequence

As a sum of two squares: 101² + 129²
As consecutive integers: 6,709 + 6,710 + 6,711 + 6,712
Aliquot sequence: 26,842 13,424 12,616 12,584 15,346 7,676 6,604 5,940 14,220 29,460 53,196 97,332 129,804 184,356 298,434 298,446 298,458 — unresolved within range

Representations

In words
twenty-six thousand eight hundred forty-two
Ordinal
26842nd
Binary
110100011011010
Octal
64332
Hexadecimal
0x68DA
Base64
aNo=
One's complement
38,693 (16-bit)
In other bases
ternary (3) 1100211011
quaternary (4) 12203122
quinary (5) 1324332
senary (6) 324134
septenary (7) 141154
nonary (9) 40734
undecimal (11) 19192
duodecimal (12) 1364a
tridecimal (13) c2aa
tetradecimal (14) 9ad4
pentadecimal (15) 7e47

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵κϛωμβʹ
Mayan (base 20)
𝋣·𝋧·𝋢·𝋢
Chinese
二萬六千八百四十二
Chinese (financial)
貳萬陸仟捌佰肆拾貳
In other modern scripts
Eastern Arabic ٢٦٨٤٢ Devanagari २६८४२ Bengali ২৬৮৪২ Tamil ௨௬௮௪௨ Thai ๒๖๘๔๒ Tibetan ༢༦༨༤༢ Khmer ២៦៨៤២ Lao ໒໖໘໔໒ Burmese ၂၆၈၄၂

Digit at this position in famous constants

π — Pi (π)
Digit 26,842 = 7
e — Euler's number (e)
Digit 26,842 = 6
φ — Golden ratio (φ)
Digit 26,842 = 3
√2 — Pythagoras's (√2)
Digit 26,842 = 4
ln 2 — Natural log of 2
Digit 26,842 = 9
γ — Euler-Mascheroni (γ)
Digit 26,842 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 26842, here are decompositions:

  • 3 + 26839 = 26842
  • 29 + 26813 = 26842
  • 41 + 26801 = 26842
  • 59 + 26783 = 26842
  • 83 + 26759 = 26842
  • 113 + 26729 = 26842
  • 131 + 26711 = 26842
  • 149 + 26693 = 26842

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-68Da
U+68DA
Other letter (Lo)

UTF-8 encoding: E6 A3 9A (3 bytes).

Hex color
#0068DA
RGB(0, 104, 218)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.104.218.

Address
0.0.104.218
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.104.218

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

Position in π

The digit sequence 26842 first appears in π at position 61,085 of the decimal expansion (the 61,085ordinal-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.