3447
RFC 3447 was the previous PKCS #1 specification.
- Odd
- Composite
Where 3447 fits
Why 3447 is special
It introduced the OAEP and PSS padding intended to replace the v1.5 schemes, which are still widely deployed twenty years later.
Factors & digit properties
- Divisors (6)
- 1, 3, 9, 383, 1149, 3447
- Prime factorisation
- 3^2 × 383
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 3447
- Scientific notation
- 3.447 × 10^3
Roman numerals
M M M C D X L V I I
MMMCDXLVII uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 1 0 1 0 1 1 1 0 1 1 1
1 × 2,048 + 1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 3,447
Octal
6 5 6 7
6 × 512 + 5 × 64 + 6 × 8 + 7 × 1 = 3,447
Hexadecimal
d 7 7
d × 256 + 7 × 16 + 7 × 1 = 3,447
Read as powers of two: 2,048 + 1,024 + 256 + 64 + 32 + 16 + 4 + 2 + 1 = 3,447.
In historical numeral systems
Egyptian
3 lotuses, 4 coils of rope, 4 hobbles, 7 strokes
3 × 1,000 + 4 × 100 + 4 × 10 + 7 × 1 = 3,447. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
5 corner wedges + 7 vertical wedges (sixties place), 2 corner wedges + 7 vertical wedges (units place)
57 × 60 + 27 = 3447. Places are separated by a space on the tablet, with the higher place written first.
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
- Deficient number
Related numbers & connections
RFC 8017 replaced RFC 3447 as the PKCS #1 specification, carrying forward both the modern padding and the legacy v1.5 schemes.
View 8017 →Other connections
- developed from8017
why?
Strength 0.50, confidence "high".
Technology & computing
RFC 3447 specified PKCS #1 v2.1 with OAEP and PSS. It was obsoleted by RFC 8017, and the older v1.5 schemes it sought to supersede remain in common use.
DocumentedTechnology & computingGeography: International — IETFPeriod: 2003
Common questions
Is 3447 a prime number?
No, 3447 is not prime.
What are the factors of 3447?
The factors of 3447 are 1, 3, 9, 383, 1149, 3447.
What is 3447 in Roman numerals?
3447 in Roman numerals is MMMCDXLVII. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be MMMCCCCXXXXVII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 15 July 2026