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105,804

105,804 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.).

105,804 (one hundred five thousand eight hundred four) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 3² × 2,939. Its proper divisors sum to 161,736, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x19D4C.

Abundant Number Cube-Free Harshad / Niven Odious Number Recamán's Sequence Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
408,501
Recamán's sequence
a(42,771) = 105,804
Square (n²)
11,194,486,416
Cube (n³)
1,184,421,440,758,464
Divisor count
18
σ(n) — sum of divisors
267,540
φ(n) — Euler's totient
35,256
Sum of prime factors
2,949

Primality

Prime factorization: 2 2 × 3 2 × 2939

Nearest primes: 105,769 (−35) · 105,817 (+13)

Divisors & multiples

All divisors (18)
1 · 2 · 3 · 4 · 6 · 9 · 12 · 18 · 36 · 2939 · 5878 · 8817 · 11756 · 17634 · 26451 · 35268 · 52902 (half) · 105804
Aliquot sum (sum of proper divisors): 161,736
Factor pairs (a × b = 105,804)
1 × 105804
2 × 52902
3 × 35268
4 × 26451
6 × 17634
9 × 11756
12 × 8817
18 × 5878
36 × 2939
First multiples
105,804 · 211,608 (double) · 317,412 · 423,216 · 529,020 · 634,824 · 740,628 · 846,432 · 952,236 · 1,058,040

Sums & aliquot sequence

As consecutive integers: 35,267 + 35,268 + 35,269 13,222 + 13,223 + … + 13,229 11,752 + 11,753 + … + 11,760 4,397 + 4,398 + … + 4,420
Aliquot sequence: 105,804 161,736 261,624 452,616 678,984 1,109,016 1,950,144 3,950,784 8,002,456 10,862,264 12,915,016 11,300,654 5,665,186 2,832,596 3,000,364 2,559,260 3,304,276 — unresolved within range

Continued fraction of √n

√105,804 = [325; (3, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 5, 2, 1, 5, 1, 1, 3, 13, 1, 1, 3, 1, 2, …)]

Representations

In words
one hundred five thousand eight hundred four
Ordinal
105804th
Binary
11001110101001100
Octal
316514
Hexadecimal
0x19D4C
Base64
AZ1M
One's complement
4,294,861,491 (32-bit)
Scientific notation
1.05804 × 10⁵
As a duration
105,804 s = 1 day, 5 hours, 23 minutes, 24 seconds
In other bases
ternary (3) 12101010200
quaternary (4) 121311030
quinary (5) 11341204
senary (6) 2133500
septenary (7) 620316
nonary (9) 171120
undecimal (11) 72546
duodecimal (12) 51290
tridecimal (13) 3920a
tetradecimal (14) 2a7b6
pentadecimal (15) 21539

As an angle

105,804° = 293 × 360° + 324°
324° ≈ 5.655 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρεωδʹ
Mayan (base 20)
𝋭·𝋤·𝋪·𝋤
Chinese
一十萬五千八百零四
Chinese (financial)
壹拾萬伍仟捌佰零肆
In other modern scripts
Eastern Arabic ١٠٥٨٠٤ Devanagari १०५८०४ Bengali ১০৫৮০৪ Tamil ௧௦௫௮௦௪ Thai ๑๐๕๘๐๔ Tibetan ༡༠༥༨༠༤ Khmer ១០៥៨០៤ Lao ໑໐໕໘໐໔ Burmese ၁၀၅၈၀၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105804, here are decompositions:

  • 37 + 105767 = 105804
  • 43 + 105761 = 105804
  • 53 + 105751 = 105804
  • 71 + 105733 = 105804
  • 103 + 105701 = 105804
  • 113 + 105691 = 105804
  • 131 + 105673 = 105804
  • 137 + 105667 = 105804

Showing the first eight; more decompositions exist.

Hex color
#019D4C
RGB(1, 157, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.157.76.

Address
0.1.157.76
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.157.76

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 105,804 and was likely granted around 1870.

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

Position in π

The digit sequence 105804 first appears in π at position 60,773 of the decimal expansion (the 60,773ordinal-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.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.