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129,996

129,996 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.).

129,996 (one hundred twenty-nine thousand nine hundred ninety-six) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 23 × 157. Its proper divisors sum to 215,076, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FBCC.

Abundant Number Cube-Free Evil Number Harshad / Niven Practical Number Recamán's Sequence Refactorable Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
36
Digit product
8,748
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
699,921
Recamán's sequence
a(33,748) = 129,996
Square (n²)
16,898,960,016
Cube (n³)
2,196,797,206,239,936
Divisor count
36
σ(n) — sum of divisors
345,072
φ(n) — Euler's totient
41,184
Sum of prime factors
190

Primality

Prime factorization: 2 2 × 3 2 × 23 × 157

Nearest primes: 129,971 (−25) · 130,003 (+7)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 6 · 9 · 12 · 18 · 23 · 36 · 46 · 69 · 92 · 138 · 157 · 207 · 276 · 314 · 414 · 471 · 628 · 828 · 942 · 1413 · 1884 · 2826 · 3611 · 5652 · 7222 · 10833 · 14444 · 21666 · 32499 · 43332 · 64998 (half) · 129996
Aliquot sum (sum of proper divisors): 215,076
Factor pairs (a × b = 129,996)
1 × 129996
2 × 64998
3 × 43332
4 × 32499
6 × 21666
9 × 14444
12 × 10833
18 × 7222
23 × 5652
36 × 3611
46 × 2826
69 × 1884
92 × 1413
138 × 942
157 × 828
207 × 628
276 × 471
314 × 414
First multiples
129,996 · 259,992 (double) · 389,988 · 519,984 · 649,980 · 779,976 · 909,972 · 1,039,968 · 1,169,964 · 1,299,960

Sums & aliquot sequence

As consecutive integers: 43,331 + 43,332 + 43,333 16,246 + 16,247 + … + 16,253 14,440 + 14,441 + … + 14,448 5,641 + 5,642 + … + 5,663
Aliquot sequence: 129,996 215,076 286,796 215,104 211,870 169,514 87,094 62,234 37,060 46,100 54,154 27,080 33,940 37,376 38,326 19,166 14,602 — unresolved within range

Continued fraction of √n

√129,996 = [360; (1, 1, 4, 1, 1, 5, 2, 2, 3, 1, 4, 3, 1, 2, 2, 3, 1, 5, 2, 1, 1, 3, 7, 180, …)]

Period length 48 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-nine thousand nine hundred ninety-six
Ordinal
129996th
Binary
11111101111001100
Octal
375714
Hexadecimal
0x1FBCC
Base64
AfvM
One's complement
4,294,837,299 (32-bit)
Scientific notation
1.29996 × 10⁵
As a duration
129,996 s = 1 day, 12 hours, 6 minutes, 36 seconds
In other bases
ternary (3) 20121022200
quaternary (4) 133233030
quinary (5) 13124441
senary (6) 2441500
septenary (7) 1050666
nonary (9) 217280
undecimal (11) 89739
duodecimal (12) 63290
tridecimal (13) 47229
tetradecimal (14) 35536
pentadecimal (15) 287b6

As an angle

129,996° = 361 × 360° + 36°
36° ≈ 0.628 rad

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκθϡϟϛʹ
Mayan (base 20)
𝋰·𝋤·𝋳·𝋰
Chinese
一十二萬九千九百九十六
Chinese (financial)
壹拾貳萬玖仟玖佰玖拾陸
In other modern scripts
Eastern Arabic ١٢٩٩٩٦ Devanagari १२९९९६ Bengali ১২৯৯৯৬ Tamil ௧௨௯௯௯௬ Thai ๑๒๙๙๙๖ Tibetan ༡༢༩༩༩༦ Khmer ១២៩៩៩៦ Lao ໑໒໙໙໙໖ Burmese ၁၂၉၉၉၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 129996, here are decompositions:

  • 29 + 129967 = 129996
  • 37 + 129959 = 129996
  • 43 + 129953 = 129996
  • 59 + 129937 = 129996
  • 79 + 129917 = 129996
  • 103 + 129893 = 129996
  • 109 + 129887 = 129996
  • 193 + 129803 = 129996

Showing the first eight; more decompositions exist.

Unicode codepoint
🯌
Raised Small Left Square Bracket
U+1FBCC
Other symbol (So)

UTF-8 encoding: F0 9F AF 8C (4 bytes).

Hex color
#01FBCC
RGB(1, 251, 204)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.251.204.

Address
0.1.251.204
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.251.204

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 129,996 and was likely granted around 1872.

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

Related reading

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