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16,400

16,400 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

Properties

Parity
Even
Digit count
5
Digit sum
11
Digital root
2
Palindrome
No
Reversed
461
Divisor count
30
σ(n) — sum of divisors
40,362

Primality

Prime factorization: 2 4 × 5 2 × 41

Divisors & multiples

All divisors (30)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 25 · 40 · 41 · 50 · 80 · 82 · 100 · 164 · 200 · 205 · 328 · 400 · 410 · 656 · 820 · 1025 · 1640 · 2050 · 3280 · 4100 · 8200 · 16400
Aliquot sum (sum of proper divisors): 23,962
Factor pairs (a × b = 16,400)
1 × 16400
2 × 8200
4 × 4100
5 × 3280
8 × 2050
10 × 1640
16 × 1025
20 × 820
25 × 656
40 × 410
41 × 400
50 × 328
80 × 205
82 × 200
100 × 164
First multiples
16,400 · 32,800 · 49,200 · 65,600 · 82,000 · 98,400 · 114,800 · 131,200 · 147,600 · 164,000

Representations

In words
sixteen thousand four hundred
Ordinal
16400th
Binary
100000000010000
Octal
40020
Hexadecimal
0x4010
Base64
QBA=

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16400, here are decompositions:

  • 19 + 16381 = 16400
  • 31 + 16369 = 16400
  • 37 + 16363 = 16400
  • 61 + 16339 = 16400
  • 67 + 16333 = 16400
  • 127 + 16273 = 16400
  • 151 + 16249 = 16400
  • 211 + 16189 = 16400

Showing the first eight; more decompositions exist.

Unicode codepoint
䀐
CJK Unified Ideograph-4010
U+4010
Other letter (Lo)

UTF-8 encoding: E4 80 90 (3 bytes).

Lookup U+4010 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#004010
RGB(0, 64, 16)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.64.16.

Address
0.0.64.16
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.64.16

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