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12,090

12,090 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.).
Abundant Number Arithmetic Number Gapful Number Happy Number Hexagonal Odious Number Practical Number Recamán's Sequence Semiperfect Number Squarefree Triangular

Properties

Parity
Even
Digit count
5
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
14 bits
Reversed
9,021
Recamán's sequence
a(22,604) = 12,090
Square (n²)
146,168,100
Cube (n³)
1,767,172,329,000
Divisor count
32
σ(n) — sum of divisors
32,256
φ(n) — Euler's totient
2,880
Sum of prime factors
54

Primality

Prime factorization: 2 × 3 × 5 × 13 × 31

Nearest primes: 12,073 (−17) · 12,097 (+7)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 5 · 6 · 10 · 13 · 15 · 26 · 30 · 31 · 39 · 62 · 65 · 78 · 93 · 130 · 155 · 186 · 195 · 310 · 390 · 403 · 465 · 806 · 930 · 1209 · 2015 · 2418 · 4030 · 6045 (half) · 12090
Aliquot sum (sum of proper divisors): 20,166
Factor pairs (a × b = 12,090)
1 × 12090
2 × 6045
3 × 4030
5 × 2418
6 × 2015
10 × 1209
13 × 930
15 × 806
26 × 465
30 × 403
31 × 390
39 × 310
62 × 195
65 × 186
78 × 155
93 × 130
First multiples
12,090 · 24,180 (double) · 36,270 · 48,360 · 60,450 · 72,540 · 84,630 · 96,720 · 108,810 · 120,900

Sums & aliquot sequence

As consecutive integers: 4,029 + 4,030 + 4,031 3,021 + 3,022 + 3,023 + 3,024 2,416 + 2,417 + 2,418 + 2,419 + 2,420 1,002 + 1,003 + … + 1,013
Aliquot sequence: 12,090 20,166 20,178 26,622 38,178 59,742 69,738 72,822 76,218 76,230 172,746 266,934 298,554 333,894 394,746 466,662 630,042 — unresolved within range

Representations

In words
twelve thousand ninety
Ordinal
12090th
Binary
10111100111010
Octal
27472
Hexadecimal
0x2F3A
Base64
Lzo=
One's complement
53,445 (16-bit)
In other bases
ternary (3) 121120210
quaternary (4) 2330322
quinary (5) 341330
senary (6) 131550
septenary (7) 50151
nonary (9) 17523
undecimal (11) 90a1
duodecimal (12) 6bb6
tridecimal (13) 5670
tetradecimal (14) 4598
pentadecimal (15) 38b0

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιβϟʹ
Mayan (base 20)
𝋡·𝋪·𝋤·𝋪
Chinese
一萬二千零九十
Chinese (financial)
壹萬貳仟零玖拾
In other modern scripts
Eastern Arabic ١٢٠٩٠ Devanagari १२०९० Bengali ১২০৯০ Tamil ௧௨௦௯௦ Thai ๑๒๐๙๐ Tibetan ༡༢༠༩༠ Khmer ១២០៩០ Lao ໑໒໐໙໐ Burmese ၁၂၀၉၀

Digit at this position in famous constants

π — Pi (π)
Digit 12,090 = 2
e — Euler's number (e)
Digit 12,090 = 3
φ — Golden ratio (φ)
Digit 12,090 = 4
√2 — Pythagoras's (√2)
Digit 12,090 = 1
ln 2 — Natural log of 2
Digit 12,090 = 2
γ — Euler-Mascheroni (γ)
Digit 12,090 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 12090, here are decompositions:

  • 17 + 12073 = 12090
  • 19 + 12071 = 12090
  • 41 + 12049 = 12090
  • 47 + 12043 = 12090
  • 53 + 12037 = 12090
  • 79 + 12011 = 12090
  • 83 + 12007 = 12090
  • 103 + 11987 = 12090

Showing the first eight; more decompositions exist.

Unicode codepoint
Kangxi Radical Bristle
U+2F3A
Other symbol (So)

UTF-8 encoding: E2 BC BA (3 bytes).

Hex color
#002F3A
RGB(0, 47, 58)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.47.58.

Address
0.0.47.58
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.47.58

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 12090 first appears in π at position 50,944 of the decimal expansion (the 50,944ordinal-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.