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123,426

123,426 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.).

123,426 (one hundred twenty-three thousand four hundred twenty-six) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2 × 3² × 6,857. Its proper divisors sum to 144,036, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E222.

Abundant Number Cube-Free Happy Number Harshad / Niven Moran Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
18
Digit product
288
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
624,321
Square (n²)
15,233,977,476
Cube (n³)
1,880,268,903,952,776
Divisor count
12
σ(n) — sum of divisors
267,462
φ(n) — Euler's totient
41,136
Sum of prime factors
6,865

Primality

Prime factorization: 2 × 3 2 × 6857

Nearest primes: 123,419 (−7) · 123,427 (+1)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 6 · 9 · 18 · 6857 · 13714 · 20571 · 41142 · 61713 (half) · 123426
Aliquot sum (sum of proper divisors): 144,036
Factor pairs (a × b = 123,426)
1 × 123426
2 × 61713
3 × 41142
6 × 20571
9 × 13714
18 × 6857
First multiples
123,426 · 246,852 (double) · 370,278 · 493,704 · 617,130 · 740,556 · 863,982 · 987,408 · 1,110,834 · 1,234,260

Sums & aliquot sequence

As a sum of two squares: 15² + 351²
As consecutive integers: 41,141 + 41,142 + 41,143 30,855 + 30,856 + 30,857 + 30,858 13,710 + 13,711 + … + 13,718 10,280 + 10,281 + … + 10,291
Aliquot sequence: 123,426 144,036 220,146 220,158 278,250 530,454 538,026 538,038 646,938 770,790 1,079,178 1,097,238 1,192,938 1,192,950 2,317,986 3,410,334 3,978,762 — unresolved within range

Continued fraction of √n

√123,426 = [351; (3, 8, 4, 4, 10, 1, 1, 2, 1, 6, 1, 3, 6, 1, 10, 3, 2, 3, 1, 1, 2, 2, 4, 1, …)]

Representations

In words
one hundred twenty-three thousand four hundred twenty-six
Ordinal
123426th
Binary
11110001000100010
Octal
361042
Hexadecimal
0x1E222
Base64
AeIi
One's complement
4,294,843,869 (32-bit)
Scientific notation
1.23426 × 10⁵
As a duration
123,426 s = 1 day, 10 hours, 17 minutes, 6 seconds
In other bases
ternary (3) 20021022100
quaternary (4) 132020202
quinary (5) 12422201
senary (6) 2351230
septenary (7) 1022562
nonary (9) 207270
undecimal (11) 84806
duodecimal (12) 5b516
tridecimal (13) 44244
tetradecimal (14) 32da2
pentadecimal (15) 26886
Palindromic in base 13

As an angle

123,426° = 342 × 360° + 306°
306° ≈ 5.341 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκγυκϛʹ
Mayan (base 20)
𝋯·𝋨·𝋫·𝋦
Chinese
一十二萬三千四百二十六
Chinese (financial)
壹拾貳萬參仟肆佰貳拾陸
In other modern scripts
Eastern Arabic ١٢٣٤٢٦ Devanagari १२३४२६ Bengali ১২৩৪২৬ Tamil ௧௨௩௪௨௬ Thai ๑๒๓๔๒๖ Tibetan ༡༢༣༤༢༦ Khmer ១២៣៤២៦ Lao ໑໒໓໔໒໖ Burmese ၁၂၃၄၂၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123426, here are decompositions:

  • 7 + 123419 = 123426
  • 19 + 123407 = 123426
  • 29 + 123397 = 123426
  • 47 + 123379 = 123426
  • 53 + 123373 = 123426
  • 103 + 123323 = 123426
  • 137 + 123289 = 123426
  • 157 + 123269 = 123426

Showing the first eight; more decompositions exist.

Hex color
#01E222
RGB(1, 226, 34)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.226.34.

Address
0.1.226.34
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.226.34

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 123,426 and was likely granted around 1871.

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°.