Numberwise

5322

RFC 5322 defines the format of an email message.

2 confirmed records · 1 sourceChecked, general knowledgeHow we qualify claimsReport a correction

Where 5322 fits

Where 5322 fits: Related numbersRelated numbers: 587.Related numbers5875322
5322 connects to 1 world: related numbers.

Why 5322 is special

The address grammar it specifies is notoriously permissive — quoted strings, comments and nested constructs are all legal. Validating an email address with a regular expression is a standing joke among developers because of it.

Factors & digit properties

Divisors (8)
1, 2, 3, 6, 887, 1774, 2661, 5322
Prime factorisation
2 × 3 × 887
Digit sum
12
Digital root
3

Representations

Decimal
5322
Scientific notation
5.322 × 10^3

Roman numerals

Roman numerals as modelled here goes up to 3,999.

Binary

1 0 1 0 0 1 1 0 0 1 0 1 0

1 × 4,096 + 0 × 2,048 + 1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 5,322

Octal

1 2 3 1 2

1 × 4,096 + 2 × 512 + 3 × 64 + 1 × 8 + 2 × 1 = 5,322

Hexadecimal

1 4 c a

1 × 4,096 + 4 × 256 + c × 16 + a × 1 = 5,322

Read as powers of two: 4,096 + 1,024 + 128 + 64 + 8 + 2 = 5,322.

In historical numeral systems

Egyptian

5 lotuses, 3 coils of rope, 2 hobbles, 2 strokes

5 × 1,000 + 3 × 100 + 2 × 10 + 2 × 1 = 5,322. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.

Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.

Other mathematical patterns

  • Abundant number

Related numbers & connections

Connection
RFC 5322 defines what an email message looks like and port 587 is where a person's mail client hands one to its own server.

RFC 5322 defines what an email message looks like and port 587 is where a person's mail client hands one to its own server.

View 587 →

Other connections

  • is associated with587
    why?

    Strength 0.50, confidence "high".

How is 5322 connected to another number? →

Technology & computing

  • RFC 5322 is the present specification of email message syntax, obsoleting RFC 2822. The header structure it inherits from RFC 822 has now survived more than forty years.

    DocumentedTechnology & computingGeography: International — IETFPeriod: 2008

  • The email address grammar permits quoted local parts, embedded comments and nesting. A regular expression matching it fully runs to thousands of characters, which is why the usual advice is to send a confirmation instead.

    DocumentedTechnology & computing

Common questions

Is 5322 a prime number?

No, 5322 is not prime.

What are the factors of 5322?

The factors of 5322 are 1, 2, 3, 6, 887, 1774, 2661, 5322.

About this page's data

Mathematical facts:computed directly from the number's value — nothing to source or verify externally.

Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.

Last reviewed: 15 July 2026