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80,400

80,400 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 Harshad / Niven

Properties

Parity
Even
Digit count
5
Digit sum
12
Digital root
3
Palindrome
No
Reversed
408
Divisor count
60
σ(n) — sum of divisors
261,392

Primality

Prime factorization: 2 4 × 3 × 5 2 × 67

Divisors & multiples

All divisors (60)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 25 · 30 · 40 · 48 · 50 · 60 · 67 · 75 · 80 · 100 · 120 · 134 · 150 · 200 · 201 · 240 · 268 · 300 · 335 · 400 · 402 · 536 · 600 · 670 · 804 · 1005 · 1072 · 1200 · 1340 · 1608 · 1675 · 2010 · 2680 · 3216 · 3350 · 4020 · 5025 · 5360 · 6700 · 8040 · 10050 · 13400 · 16080 · 20100 · 26800 · 40200 · 80400
Aliquot sum (sum of proper divisors): 180,992
Factor pairs (a × b = 80,400)
1 × 80400
2 × 40200
3 × 26800
4 × 20100
5 × 16080
6 × 13400
8 × 10050
10 × 8040
12 × 6700
15 × 5360
16 × 5025
20 × 4020
24 × 3350
25 × 3216
30 × 2680
40 × 2010
48 × 1675
50 × 1608
60 × 1340
67 × 1200
75 × 1072
80 × 1005
100 × 804
120 × 670
134 × 600
150 × 536
200 × 402
201 × 400
240 × 335
268 × 300
First multiples
80,400 · 160,800 · 241,200 · 321,600 · 402,000 · 482,400 · 562,800 · 643,200 · 723,600 · 804,000

Representations

In words
eighty thousand four hundred
Ordinal
80400th
Binary
10011101000010000
Octal
235020
Hexadecimal
0x13A10
Base64
AToQ

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 80400, here are decompositions:

  • 13 + 80387 = 80400
  • 31 + 80369 = 80400
  • 37 + 80363 = 80400
  • 53 + 80347 = 80400
  • 59 + 80341 = 80400
  • 71 + 80329 = 80400
  • 83 + 80317 = 80400
  • 113 + 80287 = 80400

Showing the first eight; more decompositions exist.

Unicode codepoint
𓨐
Egyptian Hieroglyph-13A10
U+13A10
Other letter (Lo)

UTF-8 encoding: F0 93 A8 90 (4 bytes).

Hex color
#013A10
RGB(1, 58, 16)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.58.16.

Address
0.1.58.16
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.58.16

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