3901
ISO 3901 defines the International Standard Recording Code.
- Odd
- Composite
Where 3901 fits
Why 3901 is special
It identifies a specific recording rather than a song, which is how royalties are attributed when twenty artists have covered the same composition.
3901 is part of
Factors & digit properties
- Divisors (4)
- 1, 47, 83, 3901
- Prime factorisation
- 47 × 83
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 3901
- Scientific notation
- 3.901 × 10^3
Roman numerals
M M M C M I
MMMCMI uses the subtractive pair CM: a hundred before a thousand — a thousand minus a hundred.
Binary
1 1 1 1 0 0 1 1 1 1 0 1
1 × 2,048 + 1 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 3,901
Octal
7 4 7 5
7 × 512 + 4 × 64 + 7 × 8 + 5 × 1 = 3,901
Hexadecimal
f 3 d
f × 256 + 3 × 16 + d × 1 = 3,901
Read as powers of two: 2,048 + 1,024 + 512 + 256 + 32 + 16 + 8 + 4 + 1 = 3,901.
In historical numeral systems
Egyptian
3 lotuses, 9 coils of rope, 1 stroke
3 × 1,000 + 9 × 100 + 1 × 1 = 3,901. 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
- Deficient number
- Happy number
- Semiprime
Related numbers & connections
ISRC identifies a recording as ISBN identifies a book, and both had to separate the work from the physical item.
View 2108 →Other connections
- is associated with2108
why?
Strength 0.50, confidence "high".
Media & popular culture
ISO 3901 specifies the ISRC, assigned to an individual sound or music video recording. Composition rights are tracked separately, which is why both identifiers exist.
DocumentedMedia & popular cultureGeography: International — ISO member bodiesPeriod: 1986–
Common questions
Is 3901 a prime number?
No, 3901 is not prime.
What are the factors of 3901?
The factors of 3901 are 1, 47, 83, 3901.
What is 3901 in Roman numerals?
3901 in Roman numerals is MMMCMI. CM is subtractive: a hundred before a thousand — a thousand minus a hundred. Written additively it would be MMMDCCCCI, 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