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123,200

123,200 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.).

123,200 (one hundred twenty-three thousand two hundred) is an even 6-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 5² × 7 × 11. Its proper divisors sum to 254,752, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E140.

Abundant Number Evil Number Gapful Number Harshad / Niven Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
17 bits
Reversed
2,321
Square (n²)
15,178,240,000
Cube (n³)
1,869,959,168,000,000
Divisor count
84
σ(n) — sum of divisors
377,952
φ(n) — Euler's totient
38,400
Sum of prime factors
40

Primality

Prime factorization: 2 6 × 5 2 × 7 × 11

Nearest primes: 123,191 (−9) · 123,203 (+3)

Divisors & multiples

All divisors (84)
1 · 2 · 4 · 5 · 7 · 8 · 10 · 11 · 14 · 16 · 20 · 22 · 25 · 28 · 32 · 35 · 40 · 44 · 50 · 55 · 56 · 64 · 70 · 77 · 80 · 88 · 100 · 110 · 112 · 140 · 154 · 160 · 175 · 176 · 200 · 220 · 224 · 275 · 280 · 308 · 320 · 350 · 352 · 385 · 400 · 440 · 448 · 550 · 560 · 616 · 700 · 704 · 770 · 800 · 880 · 1100 · 1120 · 1232 · 1400 · 1540 · 1600 · 1760 · 1925 · 2200 · 2240 · 2464 · 2800 · 3080 · 3520 · 3850 · 4400 · 4928 · 5600 · 6160 · 7700 · 8800 · 11200 · 12320 · 15400 · 17600 · 24640 · 30800 · 61600 (half) · 123200
Aliquot sum (sum of proper divisors): 254,752
Factor pairs (a × b = 123,200)
1 × 123200
2 × 61600
4 × 30800
5 × 24640
7 × 17600
8 × 15400
10 × 12320
11 × 11200
14 × 8800
16 × 7700
20 × 6160
22 × 5600
25 × 4928
28 × 4400
32 × 3850
35 × 3520
40 × 3080
44 × 2800
50 × 2464
55 × 2240
56 × 2200
64 × 1925
70 × 1760
77 × 1600
80 × 1540
88 × 1400
100 × 1232
110 × 1120
112 × 1100
140 × 880
154 × 800
160 × 770
175 × 704
176 × 700
200 × 616
220 × 560
224 × 550
275 × 448
280 × 440
308 × 400
320 × 385
350 × 352
First multiples
123,200 · 246,400 (double) · 369,600 · 492,800 · 616,000 · 739,200 · 862,400 · 985,600 · 1,108,800 · 1,232,000

Sums & aliquot sequence

As consecutive integers: 24,638 + 24,639 + 24,640 + 24,641 + 24,642 17,597 + 17,598 + … + 17,603 11,195 + 11,196 + … + 11,205 4,916 + 4,917 + … + 4,940
Aliquot sequence: 123,200 254,752 274,448 289,132 241,552 242,544 408,208 409,200 1,066,896 2,028,144 3,685,776 6,146,928 13,369,680 33,055,920 81,615,312 159,797,808 301,853,200 — unresolved within range

Continued fraction of √n

√123,200 = [350; (1, 700)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-three thousand two hundred
Ordinal
123200th
Binary
11110000101000000
Octal
360500
Hexadecimal
0x1E140
Base64
AeFA
One's complement
4,294,844,095 (32-bit)
Scientific notation
1.232 × 10⁵
As a duration
123,200 s = 1 day, 10 hours, 13 minutes, 20 seconds
In other bases
ternary (3) 20020222222
quaternary (4) 132011000
quinary (5) 12420300
senary (6) 2350212
septenary (7) 1022120
nonary (9) 206888
undecimal (11) 84620
duodecimal (12) 5b368
tridecimal (13) 440cc
tetradecimal (14) 32c80
pentadecimal (15) 26785

As an angle

123,200° = 342 × 360° + 80°
80° ≈ 1.396 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢
Greek (Milesian)
͵ρκγσʹ
Mayan (base 20)
𝋯·𝋨·𝋠·𝋠
Chinese
一十二萬三千二百
Chinese (financial)
壹拾貳萬參仟貳佰
In other modern scripts
Eastern Arabic ١٢٣٢٠٠ Devanagari १२३२०० Bengali ১২৩২০০ Tamil ௧௨௩௨௦௦ Thai ๑๒๓๒๐๐ Tibetan ༡༢༣༢༠༠ Khmer ១២៣២០០ Lao ໑໒໓໒໐໐ Burmese ၁၂၃၂၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123200, here are decompositions:

  • 31 + 123169 = 123200
  • 73 + 123127 = 123200
  • 79 + 123121 = 123200
  • 109 + 123091 = 123200
  • 151 + 123049 = 123200
  • 193 + 123007 = 123200
  • 199 + 123001 = 123200
  • 229 + 122971 = 123200

Showing the first eight; more decompositions exist.

Unicode codepoint
𞅀
Nyiakeng Puachue Hmong Digit Zero
U+1E140
Decimal digit (Nd)

UTF-8 encoding: F0 9E 85 80 (4 bytes).

Hex color
#01E140
RGB(1, 225, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.225.64.

Address
0.1.225.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.225.64

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 123,200 and was likely granted around 1871.

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

Position in π

The digit sequence 123200 first appears in π at position 664,073 of the decimal expansion (the 664,073ordinal-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

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