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126,006

126,006 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.).

126,006 (one hundred twenty-six thousand six) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 21,001. Its proper divisors sum to 126,018, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1EC36.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
17 bits
Reversed
600,621
Recamán's sequence
a(234,152) = 126,006
Square (n²)
15,877,512,036
Cube (n³)
2,000,661,781,608,216
Divisor count
8
σ(n) — sum of divisors
252,024
φ(n) — Euler's totient
42,000
Sum of prime factors
21,006

Primality

Prime factorization: 2 × 3 × 21001

Nearest primes: 126,001 (−5) · 126,011 (+5)

Divisors & multiples

All divisors (8)
1 · 2 · 3 · 6 · 21001 · 42002 · 63003 (half) · 126006
Aliquot sum (sum of proper divisors): 126,018
Factor pairs (a × b = 126,006)
1 × 126006
2 × 63003
3 × 42002
6 × 21001
First multiples
126,006 · 252,012 (double) · 378,018 · 504,024 · 630,030 · 756,036 · 882,042 · 1,008,048 · 1,134,054 · 1,260,060

Sums & aliquot sequence

As consecutive integers: 42,001 + 42,002 + 42,003 31,500 + 31,501 + 31,502 + 31,503 10,495 + 10,496 + … + 10,506
Aliquot sequence: 126,006 126,018 147,060 333,420 600,324 874,716 1,166,316 1,590,228 2,469,100 2,889,064 2,906,936 2,543,584 2,520,104 2,205,106 1,102,556 1,295,476 1,495,564 — unresolved within range

Continued fraction of √n

√126,006 = [354; (1, 36, 2, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 23, 30, 1, 4, 1, 2, 2, 7, 1, …)]

Representations

In words
one hundred twenty-six thousand six
Ordinal
126006th
Binary
11110110000110110
Octal
366066
Hexadecimal
0x1EC36
Base64
Aew2
One's complement
4,294,841,289 (32-bit)
Scientific notation
1.26006 × 10⁵
As a duration
126,006 s = 1 day, 11 hours, 6 seconds
In other bases
ternary (3) 20101211220
quaternary (4) 132300312
quinary (5) 13013011
senary (6) 2411210
septenary (7) 1033236
nonary (9) 211756
undecimal (11) 86741
duodecimal (12) 60b06
tridecimal (13) 4547a
tetradecimal (14) 33cc6
pentadecimal (15) 27506
Palindromic in base 12

As an angle

126,006° = 350 × 360° + 6°
6° ≈ 0.105 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 · 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκϛϛʹ
Mayan (base 20)
𝋯·𝋯·𝋠·𝋦
Chinese
一十二萬六千零六
Chinese (financial)
壹拾貳萬陸仟零陸
In other modern scripts
Eastern Arabic ١٢٦٠٠٦ Devanagari १२६००६ Bengali ১২৬০০৬ Tamil ௧௨௬௦௦௬ Thai ๑๒๖๐๐๖ Tibetan ༡༢༦༠༠༦ Khmer ១២៦០០៦ Lao ໑໒໖໐໐໖ Burmese ၁၂၆၀၀၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 126006, here are decompositions:

  • 5 + 126001 = 126006
  • 43 + 125963 = 126006
  • 47 + 125959 = 126006
  • 73 + 125933 = 126006
  • 79 + 125927 = 126006
  • 107 + 125899 = 126006
  • 109 + 125897 = 126006
  • 193 + 125813 = 126006

Showing the first eight; more decompositions exist.

Hex color
#01EC36
RGB(1, 236, 54)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.236.54.

Address
0.1.236.54
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.236.54

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 126,006 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 126006 first appears in π at position 327,814 of the decimal expansion (the 327,814ordinal-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

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