Live analysis

4,990

4,990 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.).

Deficient Number Sphenic Number Squarefree

Properties

Parity: Even
Digit count: 4
Digit sum: 22
Digital root: 4
Palindrome: No
Divisor count: 8
σ(n) — sum of divisors: 9,000

Primality

Prime factorization: 2 × 5 × 499

Divisors & multiples

All divisors (8)

1 · 2 · 5 · 10 · 499 · 998 · 2495 · 4990

Aliquot sum (sum of proper divisors): 4,010

Factor pairs (a × b = 4,990)

1 × 4990

2 × 2495

5 × 998

10 × 499

First multiples

4,990 · 9,980 · 14,970 · 19,960 · 24,950 · 29,940 · 34,930 · 39,920 · 44,910 · 49,900

Representations

In words: four thousand nine hundred ninety
Ordinal: 4990th
Binary: 1001101111110
Octal: 11576
Hexadecimal: 137E

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4990, here are decompositions:

3 + 4987 = 4990
17 + 4973 = 4990
23 + 4967 = 4990
47 + 4943 = 4990
53 + 4937 = 4990
59 + 4931 = 4990
71 + 4919 = 4990
101 + 4889 = 4990

Showing the first eight; more decompositions exist.

Hex color

#00137E

RGB(0, 19, 126)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.19.126.