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109,808

109,808 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.).

109,808 (one hundred nine thousand eight hundred eight) is an even 6-digit number. It is a composite number with 10 divisors, and factors as 2⁴ × 6,863. Written other ways, in hexadecimal, 0x1ACF0.

Deficient Number Flippable Odious Number Recamán's Sequence

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
26
Digit product
0
Digital root
8
Palindrome
No
Bit width
17 bits
Reversed
808,901
Flips to (rotate 180°)
808,601
Recamán's sequence
a(249,680) = 109,808
Square (n²)
12,057,796,864
Cube (n³)
1,324,042,558,042,112
Divisor count
10
σ(n) — sum of divisors
212,784
φ(n) — Euler's totient
54,896
Sum of prime factors
6,871

Primality

Prime factorization: 2 4 × 6863

Nearest primes: 109,807 (−1) · 109,819 (+11)

Divisors & multiples

All divisors (10)
1 · 2 · 4 · 8 · 16 · 6863 · 13726 · 27452 · 54904 (half) · 109808
Aliquot sum (sum of proper divisors): 102,976
Factor pairs (a × b = 109,808)
1 × 109808
2 × 54904
4 × 27452
8 × 13726
16 × 6863
First multiples
109,808 · 219,616 (double) · 329,424 · 439,232 · 549,040 · 658,848 · 768,656 · 878,464 · 988,272 · 1,098,080

Sums & aliquot sequence

As consecutive integers: 3,416 + 3,417 + … + 3,447
Aliquot sequence: 109,808 102,976 101,494 55,754 29,434 14,720 22,000 36,032 35,596 32,444 24,340 26,816 26,524 22,476 29,996 22,504 21,596 — unresolved within range

Continued fraction of √n

√109,808 = [331; (2, 1, 2, 7, 13, 1, 27, 1, 7, 1, 3, 12, 2, 20, 4, 2, 1, 15, 2, 8, 1, 1, 2, 6, …)]

Representations

In words
one hundred nine thousand eight hundred eight
Ordinal
109808th
Binary
11010110011110000
Octal
326360
Hexadecimal
0x1ACF0
Base64
Aazw
One's complement
4,294,857,487 (32-bit)
Scientific notation
1.09808 × 10⁵
As a duration
109,808 s = 1 day, 6 hours, 30 minutes, 8 seconds
In other bases
ternary (3) 12120121222
quaternary (4) 122303300
quinary (5) 12003213
senary (6) 2204212
septenary (7) 635066
nonary (9) 176558
undecimal (11) 75556
duodecimal (12) 53668
tridecimal (13) 3ac9a
tetradecimal (14) 2c036
pentadecimal (15) 22808

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋 𒌋𒌋𒌋 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρθωηʹ
Mayan (base 20)
𝋭·𝋮·𝋪·𝋨
Chinese
一十萬九千八百零八
Chinese (financial)
壹拾萬玖仟捌佰零捌
In other modern scripts
Eastern Arabic ١٠٩٨٠٨ Devanagari १०९८०८ Bengali ১০৯৮০৮ Tamil ௧௦௯௮௦௮ Thai ๑๐๙๘๐๘ Tibetan ༡༠༩༨༠༨ Khmer ១០៩៨០៨ Lao ໑໐໙໘໐໘ Burmese ၁၀၉၈၀၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 109808, here are decompositions:

  • 19 + 109789 = 109808
  • 67 + 109741 = 109808
  • 199 + 109609 = 109808
  • 211 + 109597 = 109808
  • 229 + 109579 = 109808
  • 241 + 109567 = 109808
  • 271 + 109537 = 109808
  • 337 + 109471 = 109808

Showing the first eight; more decompositions exist.

Hex color
#01ACF0
RGB(1, 172, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.172.240.

Address
0.1.172.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.172.240

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 109,808 and was likely granted around 1871.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.