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126,009

126,009 is a composite number, odd.

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.).

126,009 (one hundred twenty-six thousand nine) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3³ × 13 × 359. Written other ways, in hexadecimal, 0x1EC39.

Arithmetic Number Deficient Number Evil Number Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
900,621
Recamán's sequence
a(234,146) = 126,009
Square (n²)
15,878,268,081
Cube (n³)
2,000,804,682,618,729
Divisor count
16
σ(n) — sum of divisors
201,600
φ(n) — Euler's totient
77,328
Sum of prime factors
381

Primality

Prime factorization: 3 3 × 13 × 359

Nearest primes: 126,001 (−8) · 126,011 (+2)

Divisors & multiples

All divisors (16)
1 · 3 · 9 · 13 · 27 · 39 · 117 · 351 · 359 · 1077 · 3231 · 4667 · 9693 · 14001 · 42003 · 126009
Aliquot sum (sum of proper divisors): 75,591
Factor pairs (a × b = 126,009)
1 × 126009
3 × 42003
9 × 14001
13 × 9693
27 × 4667
39 × 3231
117 × 1077
351 × 359
First multiples
126,009 · 252,018 (double) · 378,027 · 504,036 · 630,045 · 756,054 · 882,063 · 1,008,072 · 1,134,081 · 1,260,090

Sums & aliquot sequence

As consecutive integers: 63,004 + 63,005 42,002 + 42,003 + 42,004 20,999 + 21,000 + 21,001 + 21,002 + 21,003 + 21,004 13,997 + 13,998 + … + 14,005
Aliquot sequence: 126,009 75,591 37,041 12,351 4,929 1,983 665 295 65 19 1 0 — terminates at zero

Continued fraction of √n

√126,009 = [354; (1, 43, 2, 1, 2, 10, 1, 2, 1, 1, 4, 2, 1, 1, 4, 12, 1, 2, 4, 3, 24, 5, 1, 4, …)]

Representations

In words
one hundred twenty-six thousand nine
Ordinal
126009th
Binary
11110110000111001
Octal
366071
Hexadecimal
0x1EC39
Base64
Aew5
One's complement
4,294,841,286 (32-bit)
Scientific notation
1.26009 × 10⁵
As a duration
126,009 s = 1 day, 11 hours, 9 seconds
In other bases
ternary (3) 20101212000
quaternary (4) 132300321
quinary (5) 13013014
senary (6) 2411213
septenary (7) 1033242
nonary (9) 211760
undecimal (11) 86744
duodecimal (12) 60b09
tridecimal (13) 45480
tetradecimal (14) 33cc9
pentadecimal (15) 27509

As an angle

126,009° = 350 × 360° + 9°
9° ≈ 0.157 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 · 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκϛθʹ
Mayan (base 20)
𝋯·𝋯·𝋠·𝋩
Chinese
一十二萬六千零九
Chinese (financial)
壹拾貳萬陸仟零玖
In other modern scripts
Eastern Arabic ١٢٦٠٠٩ Devanagari १२६००९ Bengali ১২৬০০৯ Tamil ௧௨௬௦௦௯ Thai ๑๒๖๐๐๙ Tibetan ༡༢༦༠༠༩ Khmer ១២៦០០៩ Lao ໑໒໖໐໐໙ Burmese ၁၂၆၀၀၉

Also seen as

Hex color
#01EC39
RGB(1, 236, 57)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.236.57.

Address
0.1.236.57
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.236.57

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 126,009 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 126009 first appears in π at position 980,251 of the decimal expansion (the 980,251ordinal-suffix:st 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°.