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105,080

105,080 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.).

105,080 (one hundred five thousand eighty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 37 × 71. Its proper divisors sum to 141,160, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x19A78.

Abundant Number Arithmetic Number Gapful Number Odious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
17 bits
Reversed
80,501
Recamán's sequence
a(90,923) = 105,080
Square (n²)
11,041,806,400
Cube (n³)
1,160,273,016,512,000
Divisor count
32
σ(n) — sum of divisors
246,240
φ(n) — Euler's totient
40,320
Sum of prime factors
119

Primality

Prime factorization: 2 3 × 5 × 37 × 71

Nearest primes: 105,071 (−9) · 105,097 (+17)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 37 · 40 · 71 · 74 · 142 · 148 · 185 · 284 · 296 · 355 · 370 · 568 · 710 · 740 · 1420 · 1480 · 2627 · 2840 · 5254 · 10508 · 13135 · 21016 · 26270 · 52540 (half) · 105080
Aliquot sum (sum of proper divisors): 141,160
Factor pairs (a × b = 105,080)
1 × 105080
2 × 52540
4 × 26270
5 × 21016
8 × 13135
10 × 10508
20 × 5254
37 × 2840
40 × 2627
71 × 1480
74 × 1420
142 × 740
148 × 710
185 × 568
284 × 370
296 × 355
First multiples
105,080 · 210,160 (double) · 315,240 · 420,320 · 525,400 · 630,480 · 735,560 · 840,640 · 945,720 · 1,050,800

Sums & aliquot sequence

As consecutive integers: 21,014 + 21,015 + 21,016 + 21,017 + 21,018 6,560 + 6,561 + … + 6,575 2,822 + 2,823 + … + 2,858 1,445 + 1,446 + … + 1,515
Aliquot sequence: 105,080 141,160 176,540 284,452 284,508 538,132 538,188 940,212 2,109,744 5,608,512 14,361,984 36,874,656 99,870,624 240,833,376 554,002,848 1,308,781,152 3,176,470,080 — unresolved within range

Continued fraction of √n

√105,080 = [324; (6, 4, 3, 3, 1, 1, 8, 1, 1, 3, 3, 4, 6, 648)]

Period length 14 — the block in parentheses repeats forever.

Representations

In words
one hundred five thousand eighty
Ordinal
105080th
Binary
11001101001111000
Octal
315170
Hexadecimal
0x19A78
Base64
AZp4
One's complement
4,294,862,215 (32-bit)
Scientific notation
1.0508 × 10⁵
As a duration
105,080 s = 1 day, 5 hours, 11 minutes, 20 seconds
In other bases
ternary (3) 12100010212
quaternary (4) 121221320
quinary (5) 11330310
senary (6) 2130252
septenary (7) 615233
nonary (9) 170125
undecimal (11) 71a48
duodecimal (12) 50988
tridecimal (13) 38aa1
tetradecimal (14) 2a41a
pentadecimal (15) 21205

As an angle

105,080° = 291 × 360° + 320°
320° ≈ 5.585 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρεπʹ
Mayan (base 20)
𝋭·𝋢·𝋮·𝋠
Chinese
一十萬五千零八十
Chinese (financial)
壹拾萬伍仟零捌拾
In other modern scripts
Eastern Arabic ١٠٥٠٨٠ Devanagari १०५०८० Bengali ১০৫০৮০ Tamil ௧௦௫௦௮௦ Thai ๑๐๕๐๘๐ Tibetan ༡༠༥༠༨༠ Khmer ១០៥០៨០ Lao ໑໐໕໐໘໐ Burmese ၁၀၅၀၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105080, here are decompositions:

  • 43 + 105037 = 105080
  • 61 + 105019 = 105080
  • 109 + 104971 = 105080
  • 127 + 104953 = 105080
  • 163 + 104917 = 105080
  • 211 + 104869 = 105080
  • 229 + 104851 = 105080
  • 277 + 104803 = 105080

Showing the first eight; more decompositions exist.

Hex color
#019A78
RGB(1, 154, 120)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.154.120.

Address
0.1.154.120
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.154.120

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 105,080 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 105080 first appears in π at position 428,129 of the decimal expansion (the 428,129ordinal-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.

Related reading

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