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9,828

9,828 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 Heptagonal

Properties

Parity
Even
Digit count
4
Digit sum
27
Digital root
9
Palindrome
No
Divisor count
48
σ(n) — sum of divisors
31,360

Primality

Prime factorization: 2 2 × 3 3 × 7 × 13

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 6 · 7 · 9 · 12 · 13 · 14 · 18 · 21 · 26 · 27 · 28 · 36 · 39 · 42 · 52 · 54 · 63 · 78 · 84 · 91 · 108 · 117 · 126 · 156 · 182 · 189 · 234 · 252 · 273 · 351 · 364 · 378 · 468 · 546 · 702 · 756 · 819 · 1092 · 1404 · 1638 · 2457 · 3276 · 4914 · 9828
Aliquot sum (sum of proper divisors): 21,532
Factor pairs (a × b = 9,828)
1 × 9828
2 × 4914
3 × 3276
4 × 2457
6 × 1638
7 × 1404
9 × 1092
12 × 819
13 × 756
14 × 702
18 × 546
21 × 468
26 × 378
27 × 364
28 × 351
36 × 273
39 × 252
42 × 234
52 × 189
54 × 182
63 × 156
78 × 126
84 × 117
91 × 108
First multiples
9,828 · 19,656 · 29,484 · 39,312 · 49,140 · 58,968 · 68,796 · 78,624 · 88,452 · 98,280

Representations

In words
nine thousand eight hundred twenty-eight
Ordinal
9828th
Binary
10011001100100
Octal
23144
Hexadecimal
2664

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 9828, here are decompositions:

  • 11 + 9817 = 9828
  • 17 + 9811 = 9828
  • 37 + 9791 = 9828
  • 41 + 9787 = 9828
  • 47 + 9781 = 9828
  • 59 + 9769 = 9828
  • 61 + 9767 = 9828
  • 79 + 9749 = 9828

Showing the first eight; more decompositions exist.

Unicode codepoint
U+2664
Other symbol (So)

UTF-8 encoding: E2 99 A4 (3 bytes).

Hex color
#002664
RGB(0, 38, 100)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.38.100.