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16,804

16,804 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 Odious Number Pernicious Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
40,861
Recamán's sequence
a(17,628) = 16,804
Square (n²)
282,374,416
Cube (n³)
4,745,019,686,464
Divisor count
6
σ(n) — sum of divisors
29,414
φ(n) — Euler's totient
8,400
Sum of prime factors
4,205

Primality

Prime factorization: 2 2 × 4201

Nearest primes: 16,787 (−17) · 16,811 (+7)

Divisors & multiples

All divisors (6)
1 · 2 · 4 · 4201 · 8402 (half) · 16804
Aliquot sum (sum of proper divisors): 12,610
Factor pairs (a × b = 16,804)
1 × 16804
2 × 8402
4 × 4201
First multiples
16,804 · 33,608 (double) · 50,412 · 67,216 · 84,020 · 100,824 · 117,628 · 134,432 · 151,236 · 168,040

Sums & aliquot sequence

As a sum of two squares: 80² + 102²
As consecutive integers: 2,097 + 2,098 + … + 2,104
Aliquot sequence: 16,804 12,610 12,086 6,046 3,026 1,834 1,334 826 614 310 266 214 110 106 56 64 63 — unresolved within range

Representations

In words
sixteen thousand eight hundred four
Ordinal
16804th
Binary
100000110100100
Octal
40644
Hexadecimal
0x41A4
Base64
QaQ=
One's complement
48,731 (16-bit)
In other bases
ternary (3) 212001101
quaternary (4) 10012210
quinary (5) 1014204
senary (6) 205444
septenary (7) 66664
nonary (9) 25041
undecimal (11) 11697
duodecimal (12) 9884
tridecimal (13) 7858
tetradecimal (14) 61a4
pentadecimal (15) 4ea4

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιϛωδʹ
Mayan (base 20)
𝋢·𝋢·𝋠·𝋤
Chinese
一萬六千八百零四
Chinese (financial)
壹萬陸仟捌佰零肆
In other modern scripts
Eastern Arabic ١٦٨٠٤ Devanagari १६८०४ Bengali ১৬৮০৪ Tamil ௧௬௮௦௪ Thai ๑๖๘๐๔ Tibetan ༡༦༨༠༤ Khmer ១៦៨០៤ Lao ໑໖໘໐໔ Burmese ၁၆၈၀၄

Digit at this position in famous constants

π — Pi (π)
Digit 16,804 = 8
e — Euler's number (e)
Digit 16,804 = 4
φ — Golden ratio (φ)
Digit 16,804 = 4
√2 — Pythagoras's (√2)
Digit 16,804 = 4
ln 2 — Natural log of 2
Digit 16,804 = 6
γ — Euler-Mascheroni (γ)
Digit 16,804 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16804, here are decompositions:

  • 17 + 16787 = 16804
  • 41 + 16763 = 16804
  • 101 + 16703 = 16804
  • 113 + 16691 = 16804
  • 131 + 16673 = 16804
  • 173 + 16631 = 16804
  • 197 + 16607 = 16804
  • 251 + 16553 = 16804

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-41A4
U+41A4
Other letter (Lo)

UTF-8 encoding: E4 86 A4 (3 bytes).

Hex color
#0041A4
RGB(0, 65, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.65.164.

Address
0.0.65.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.65.164

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

Position in π

The digit sequence 16804 first appears in π at position 216,173 of the decimal expansion (the 216,173ordinal-suffix:rd 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.