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28,084

28,084 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 Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
48,082
Recamán's sequence
a(34,263) = 28,084
Square (n²)
788,711,056
Cube (n³)
22,150,161,296,704
Divisor count
24
σ(n) — sum of divisors
60,480
φ(n) — Euler's totient
11,136
Sum of prime factors
87

Primality

Prime factorization: 2 2 × 7 × 17 × 59

Nearest primes: 28,081 (−3) · 28,087 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 7 · 14 · 17 · 28 · 34 · 59 · 68 · 118 · 119 · 236 · 238 · 413 · 476 · 826 · 1003 · 1652 · 2006 · 4012 · 7021 · 14042 (half) · 28084
Aliquot sum (sum of proper divisors): 32,396
Factor pairs (a × b = 28,084)
1 × 28084
2 × 14042
4 × 7021
7 × 4012
14 × 2006
17 × 1652
28 × 1003
34 × 826
59 × 476
68 × 413
118 × 238
119 × 236
First multiples
28,084 · 56,168 (double) · 84,252 · 112,336 · 140,420 · 168,504 · 196,588 · 224,672 · 252,756 · 280,840

Sums & aliquot sequence

As consecutive integers: 4,009 + 4,010 + … + 4,015 3,507 + 3,508 + … + 3,514 1,644 + 1,645 + … + 1,660 474 + 475 + … + 529
Aliquot sequence: 28,084 32,396 38,164 42,476 46,900 71,148 141,120 423,522 682,398 834,162 1,072,590 1,501,698 1,837,374 2,904,258 3,734,142 4,059,138 4,059,150 — unresolved within range

Representations

In words
twenty-eight thousand eighty-four
Ordinal
28084th
Binary
110110110110100
Octal
66664
Hexadecimal
0x6DB4
Base64
bbQ=
One's complement
37,451 (16-bit)
In other bases
ternary (3) 1102112011
quaternary (4) 12312310
quinary (5) 1344314
senary (6) 334004
septenary (7) 144610
nonary (9) 42464
undecimal (11) 1a111
duodecimal (12) 14304
tridecimal (13) ca24
tetradecimal (14) a340
pentadecimal (15) 84c4

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵κηπδʹ
Mayan (base 20)
𝋣·𝋪·𝋤·𝋤
Chinese
二萬八千零八十四
Chinese (financial)
貳萬捌仟零捌拾肆
In other modern scripts
Eastern Arabic ٢٨٠٨٤ Devanagari २८०८४ Bengali ২৮০৮৪ Tamil ௨௮௦௮௪ Thai ๒๘๐๘๔ Tibetan ༢༨༠༨༤ Khmer ២៨០៨៤ Lao ໒໘໐໘໔ Burmese ၂၈၀၈၄

Digit at this position in famous constants

π — Pi (π)
Digit 28,084 = 0
e — Euler's number (e)
Digit 28,084 = 5
φ — Golden ratio (φ)
Digit 28,084 = 7
√2 — Pythagoras's (√2)
Digit 28,084 = 9
ln 2 — Natural log of 2
Digit 28,084 = 2
γ — Euler-Mascheroni (γ)
Digit 28,084 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 28084, here are decompositions:

  • 3 + 28081 = 28084
  • 53 + 28031 = 28084
  • 83 + 28001 = 28084
  • 101 + 27983 = 28084
  • 131 + 27953 = 28084
  • 137 + 27947 = 28084
  • 167 + 27917 = 28084
  • 191 + 27893 = 28084

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-6Db4
U+6DB4
Other letter (Lo)

UTF-8 encoding: E6 B6 B4 (3 bytes).

Hex color
#006DB4
RGB(0, 109, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.109.180.

Address
0.0.109.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.109.180

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

Position in π

The digit sequence 28084 first appears in π at position 38,200 of the decimal expansion (the 38,200ordinal-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.