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7,120

7,120 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
10
Digital root
1
Palindrome
No
Divisor count
20
σ(n) — sum of divisors
16,740

Primality

Prime factorization: 2 4 × 5 × 89

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 40 · 80 · 89 · 178 · 356 · 445 · 712 · 890 · 1424 · 1780 · 3560 · 7120
Aliquot sum (sum of proper divisors): 9,620
Factor pairs (a × b = 7,120)
1 × 7120
2 × 3560
4 × 1780
5 × 1424
8 × 890
10 × 712
16 × 445
20 × 356
40 × 178
80 × 89
First multiples
7,120 · 14,240 · 21,360 · 28,480 · 35,600 · 42,720 · 49,840 · 56,960 · 64,080 · 71,200

Representations

In words
seven thousand one hundred twenty
Ordinal
7120th
Binary
1101111010000
Octal
15720
Hexadecimal
1BD0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 7120, here are decompositions:

  • 11 + 7109 = 7120
  • 17 + 7103 = 7120
  • 41 + 7079 = 7120
  • 101 + 7019 = 7120
  • 107 + 7013 = 7120
  • 137 + 6983 = 7120
  • 149 + 6971 = 7120
  • 173 + 6947 = 7120

Showing the first eight; more decompositions exist.

Unicode codepoint
U+1BD0
Other letter (Lo)

UTF-8 encoding: E1 AF 90 (3 bytes).

Hex color
#001BD0
RGB(0, 27, 208)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.27.208.