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105,200

105,200 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.).

105,200 (one hundred five thousand two hundred) is an even 6-digit number. It is a composite number with 30 divisors, and factors as 2⁴ × 5² × 263. Its proper divisors sum to 148,504, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x19AF0.

Abundant Number Gapful Number Harshad / Niven Odious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
17 bits
Reversed
2,501
Recamán's sequence
a(90,059) = 105,200
Square (n²)
11,067,040,000
Cube (n³)
1,164,252,608,000,000
Divisor count
30
σ(n) — sum of divisors
253,704
φ(n) — Euler's totient
41,920
Sum of prime factors
281

Primality

Prime factorization: 2 4 × 5 2 × 263

Nearest primes: 105,199 (−1) · 105,211 (+11)

Divisors & multiples

All divisors (30)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 25 · 40 · 50 · 80 · 100 · 200 · 263 · 400 · 526 · 1052 · 1315 · 2104 · 2630 · 4208 · 5260 · 6575 · 10520 · 13150 · 21040 · 26300 · 52600 (half) · 105200
Aliquot sum (sum of proper divisors): 148,504
Factor pairs (a × b = 105,200)
1 × 105200
2 × 52600
4 × 26300
5 × 21040
8 × 13150
10 × 10520
16 × 6575
20 × 5260
25 × 4208
40 × 2630
50 × 2104
80 × 1315
100 × 1052
200 × 526
263 × 400
First multiples
105,200 · 210,400 (double) · 315,600 · 420,800 · 526,000 · 631,200 · 736,400 · 841,600 · 946,800 · 1,052,000

Sums & aliquot sequence

As consecutive integers: 21,038 + 21,039 + 21,040 + 21,041 + 21,042 4,196 + 4,197 + … + 4,220 3,272 + 3,273 + … + 3,303 578 + 579 + … + 737
Aliquot sequence: 105,200 148,504 144,896 145,636 120,476 90,364 86,036 66,592 64,574 33,706 19,574 9,790 9,650 8,392 7,358 4,570 3,674 — unresolved within range

Continued fraction of √n

√105,200 = [324; (2, 1, 8, 2, 7, 1, 2, 1, 4, 1, 2, 2, 3, 3, 1, 1, 4, 1, 7, 1, 2, 1, 1, 25, …)]

Representations

In words
one hundred five thousand two hundred
Ordinal
105200th
Binary
11001101011110000
Octal
315360
Hexadecimal
0x19AF0
Base64
AZrw
One's complement
4,294,862,095 (32-bit)
Scientific notation
1.052 × 10⁵
As a duration
105,200 s = 1 day, 5 hours, 13 minutes, 20 seconds
In other bases
ternary (3) 12100022022
quaternary (4) 121223300
quinary (5) 11331300
senary (6) 2131012
septenary (7) 615464
nonary (9) 170268
undecimal (11) 72047
duodecimal (12) 50a68
tridecimal (13) 38b64
tetradecimal (14) 2a4a4
pentadecimal (15) 21285

As an angle

105,200° = 292 × 360° + 80°
80° ≈ 1.396 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓍢𓍢
Greek (Milesian)
͵ρεσʹ
Mayan (base 20)
𝋭·𝋣·𝋠·𝋠
Chinese
一十萬五千二百
Chinese (financial)
壹拾萬伍仟貳佰
In other modern scripts
Eastern Arabic ١٠٥٢٠٠ Devanagari १०५२०० Bengali ১০৫২০০ Tamil ௧௦௫௨௦௦ Thai ๑๐๕๒๐๐ Tibetan ༡༠༥༢༠༠ Khmer ១០៥២០០ Lao ໑໐໕໒໐໐ Burmese ၁၀၅၂၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105200, here are decompositions:

  • 103 + 105097 = 105200
  • 163 + 105037 = 105200
  • 181 + 105019 = 105200
  • 229 + 104971 = 105200
  • 241 + 104959 = 105200
  • 283 + 104917 = 105200
  • 331 + 104869 = 105200
  • 349 + 104851 = 105200

Showing the first eight; more decompositions exist.

Hex color
#019AF0
RGB(1, 154, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.154.240.

Address
0.1.154.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.154.240

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 105,200 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 105200 first appears in π at position 783,142 of the decimal expansion (the 783,142ordinal-suffix:nd 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.