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2,340

2,340 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 Harshad / Niven

Properties

Parity
Even
Digit count
4
Digit sum
9
Digital root
9
Palindrome
No
Divisor count
36
σ(n) — sum of divisors
7,644

Primality

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

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 13 · 15 · 18 · 20 · 26 · 30 · 36 · 39 · 45 · 52 · 60 · 65 · 78 · 90 · 117 · 130 · 156 · 180 · 195 · 234 · 260 · 390 · 468 · 585 · 780 · 1170 · 2340
Aliquot sum (sum of proper divisors): 5,304
Factor pairs (a × b = 2,340)
1 × 2340
2 × 1170
3 × 780
4 × 585
5 × 468
6 × 390
9 × 260
10 × 234
12 × 195
13 × 180
15 × 156
18 × 130
20 × 117
26 × 90
30 × 78
36 × 65
39 × 60
45 × 52
First multiples
2,340 · 4,680 · 7,020 · 9,360 · 11,700 · 14,040 · 16,380 · 18,720 · 21,060 · 23,400

Representations

In words
two thousand three hundred forty
Ordinal
2340th
Roman numeral
MMCCCXL
Binary
100100100100
Octal
4444
Hexadecimal
924

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2340, here are decompositions:

  • 7 + 2333 = 2340
  • 29 + 2311 = 2340
  • 31 + 2309 = 2340
  • 43 + 2297 = 2340
  • 47 + 2293 = 2340
  • 53 + 2287 = 2340
  • 59 + 2281 = 2340
  • 67 + 2273 = 2340

Showing the first eight; more decompositions exist.

Unicode codepoint
U+0924
Other letter (Lo)

UTF-8 encoding: E0 A4 A4 (3 bytes).

Hex color
#000924
RGB(0, 9, 36)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.36.