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4,900

4,900 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 Happy Number Perfect Square Powerful Number Square Pyramidal

Properties

Parity
Even
Digit count
4
Digit sum
13
Digital root
4
Palindrome
No
Divisor count
27
σ(n) — sum of divisors
12,369

Primality

Prime factorization: 2 2 × 5 2 × 7 2

Divisors & multiples

All divisors (27)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 25 · 28 · 35 · 49 · 50 · 70 · 98 · 100 · 140 · 175 · 196 · 245 · 350 · 490 · 700 · 980 · 1225 · 2450 · 4900
Aliquot sum (sum of proper divisors): 7,469
Factor pairs (a × b = 4,900)
1 × 4900
2 × 2450
4 × 1225
5 × 980
7 × 700
10 × 490
14 × 350
20 × 245
25 × 196
28 × 175
35 × 140
49 × 100
50 × 98
70 × 70
First multiples
4,900 · 9,800 · 14,700 · 19,600 · 24,500 · 29,400 · 34,300 · 39,200 · 44,100 · 49,000

Representations

In words
four thousand nine hundred
Ordinal
4900th
Binary
1001100100100
Octal
11444
Hexadecimal
1324

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4900, here are decompositions:

  • 11 + 4889 = 4900
  • 23 + 4877 = 4900
  • 29 + 4871 = 4900
  • 83 + 4817 = 4900
  • 101 + 4799 = 4900
  • 107 + 4793 = 4900
  • 113 + 4787 = 4900
  • 149 + 4751 = 4900

Showing the first eight; more decompositions exist.

Unicode codepoint
U+1324
Other letter (Lo)

UTF-8 encoding: E1 8C A4 (3 bytes).

Hex color
#001324
RGB(0, 19, 36)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.19.36.