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123,090

123,090 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.).

123,090 (one hundred twenty-three thousand ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 11 × 373. Its proper divisors sum to 200,046, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E0D2.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Harshad / Niven Practical Number Semiperfect 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
90,321
Square (n²)
15,151,148,100
Cube (n³)
1,864,954,819,629,000
Divisor count
32
σ(n) — sum of divisors
323,136
φ(n) — Euler's totient
29,760
Sum of prime factors
394

Primality

Prime factorization: 2 × 3 × 5 × 11 × 373

Nearest primes: 123,083 (−7) · 123,091 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 5 · 6 · 10 · 11 · 15 · 22 · 30 · 33 · 55 · 66 · 110 · 165 · 330 · 373 · 746 · 1119 · 1865 · 2238 · 3730 · 4103 · 5595 · 8206 · 11190 · 12309 · 20515 · 24618 · 41030 · 61545 (half) · 123090
Aliquot sum (sum of proper divisors): 200,046
Factor pairs (a × b = 123,090)
1 × 123090
2 × 61545
3 × 41030
5 × 24618
6 × 20515
10 × 12309
11 × 11190
15 × 8206
22 × 5595
30 × 4103
33 × 3730
55 × 2238
66 × 1865
110 × 1119
165 × 746
330 × 373
First multiples
123,090 · 246,180 (double) · 369,270 · 492,360 · 615,450 · 738,540 · 861,630 · 984,720 · 1,107,810 · 1,230,900

Sums & aliquot sequence

As consecutive integers: 41,029 + 41,030 + 41,031 30,771 + 30,772 + 30,773 + 30,774 24,616 + 24,617 + 24,618 + 24,619 + 24,620 11,185 + 11,186 + … + 11,195
Aliquot sequence: 123,090 200,046 299,922 407,790 704,178 980,622 1,163,754 1,537,686 1,794,006 2,093,046 2,434,314 2,434,326 2,450,778 2,982,054 2,998,986 3,266,742 3,284,538 — unresolved within range

Continued fraction of √n

√123,090 = [350; (1, 5, 3, 10, 3, 5, 1, 700)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-three thousand ninety
Ordinal
123090th
Binary
11110000011010010
Octal
360322
Hexadecimal
0x1E0D2
Base64
AeDS
One's complement
4,294,844,205 (32-bit)
Scientific notation
1.2309 × 10⁵
As a duration
123,090 s = 1 day, 10 hours, 11 minutes, 30 seconds
In other bases
ternary (3) 20020211220
quaternary (4) 132003102
quinary (5) 12414330
senary (6) 2345510
septenary (7) 1021602
nonary (9) 206756
undecimal (11) 84530
duodecimal (12) 5b296
tridecimal (13) 44046
tetradecimal (14) 32c02
pentadecimal (15) 26710

As an angle

123,090° = 341 × 360° + 330°
330° ≈ 5.76 rad
Compass bearing: NNW (north-northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρκγϟʹ
Mayan (base 20)
𝋯·𝋧·𝋮·𝋪
Chinese
一十二萬三千零九十
Chinese (financial)
壹拾貳萬參仟零玖拾
In other modern scripts
Eastern Arabic ١٢٣٠٩٠ Devanagari १२३०९० Bengali ১২৩০৯০ Tamil ௧௨௩௦௯௦ Thai ๑๒๓๐๙๐ Tibetan ༡༢༣༠༩༠ Khmer ១២៣០៩០ Lao ໑໒໓໐໙໐ Burmese ၁၂၃၀၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123090, here are decompositions:

  • 7 + 123083 = 123090
  • 13 + 123077 = 123090
  • 31 + 123059 = 123090
  • 41 + 123049 = 123090
  • 59 + 123031 = 123090
  • 73 + 123017 = 123090
  • 83 + 123007 = 123090
  • 89 + 123001 = 123090

Showing the first eight; more decompositions exist.

Hex color
#01E0D2
RGB(1, 224, 210)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.210.

Address
0.1.224.210
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.224.210

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 123,090 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 123090 first appears in π at position 638,325 of the decimal expansion (the 638,325ordinal-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°.