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10,842

10,842 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.).
Abundant Number Arithmetic Number Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
14 bits
Reversed
24,801
Recamán's sequence
a(174,575) = 10,842
Square (n²)
117,548,964
Cube (n³)
1,274,465,867,688
Divisor count
16
σ(n) — sum of divisors
23,520
φ(n) — Euler's totient
3,312
Sum of prime factors
157

Primality

Prime factorization: 2 × 3 × 13 × 139

Nearest primes: 10,837 (−5) · 10,847 (+5)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 13 · 26 · 39 · 78 · 139 · 278 · 417 · 834 · 1807 · 3614 · 5421 (half) · 10842
Aliquot sum (sum of proper divisors): 12,678
Factor pairs (a × b = 10,842)
1 × 10842
2 × 5421
3 × 3614
6 × 1807
13 × 834
26 × 417
39 × 278
78 × 139
First multiples
10,842 · 21,684 (double) · 32,526 · 43,368 · 54,210 · 65,052 · 75,894 · 86,736 · 97,578 · 108,420

Sums & aliquot sequence

As consecutive integers: 3,613 + 3,614 + 3,615 2,709 + 2,710 + 2,711 + 2,712 898 + 899 + … + 909 828 + 829 + … + 840
Aliquot sequence: 10,842 12,678 12,690 21,870 37,170 75,150 127,962 149,328 300,420 611,400 1,285,800 2,702,040 6,629,160 13,258,680 26,757,480 53,515,320 121,315,080 — unresolved within range

Representations

In words
ten thousand eight hundred forty-two
Ordinal
10842nd
Binary
10101001011010
Octal
25132
Hexadecimal
0x2A5A
Base64
Klo=
One's complement
54,693 (16-bit)
In other bases
ternary (3) 112212120
quaternary (4) 2221122
quinary (5) 321332
senary (6) 122110
septenary (7) 43416
nonary (9) 15776
undecimal (11) 8167
duodecimal (12) 6336
tridecimal (13) 4c20
tetradecimal (14) 3d46
pentadecimal (15) 332c

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ιωμβʹ
Mayan (base 20)
𝋡·𝋧·𝋢·𝋢
Chinese
一萬零八百四十二
Chinese (financial)
壹萬零捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٨٤٢ Devanagari १०८४२ Bengali ১০৮৪২ Tamil ௧௦௮௪௨ Thai ๑๐๘๔๒ Tibetan ༡༠༨༤༢ Khmer ១០៨៤២ Lao ໑໐໘໔໒ Burmese ၁၀၈၄၂

Digit at this position in famous constants

π — Pi (π)
Digit 10,842 = 2
e — Euler's number (e)
Digit 10,842 = 0
φ — Golden ratio (φ)
Digit 10,842 = 3
√2 — Pythagoras's (√2)
Digit 10,842 = 5
ln 2 — Natural log of 2
Digit 10,842 = 2
γ — Euler-Mascheroni (γ)
Digit 10,842 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10842, here are decompositions:

  • 5 + 10837 = 10842
  • 11 + 10831 = 10842
  • 43 + 10799 = 10842
  • 53 + 10789 = 10842
  • 61 + 10781 = 10842
  • 71 + 10771 = 10842
  • 89 + 10753 = 10842
  • 103 + 10739 = 10842

Showing the first eight; more decompositions exist.

Unicode codepoint
Logical And With Middle Stem
U+2A5A
Math symbol (Sm)

UTF-8 encoding: E2 A9 9A (3 bytes).

Hex color
#002A5A
RGB(0, 42, 90)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.42.90.

Address
0.0.42.90
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.42.90

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

Position in π

The digit sequence 10842 first appears in π at position 88,896 of the decimal expansion (the 88,896ordinal-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.