96,485
96,485 coulombs is the Faraday constant — the charge carried by one mole of electrons.
- Odd
- Composite
Why 96,485 is special
It is the bridge between electricity and chemistry: it says how much charge has to pass to deposit or dissolve a mole of a substance, which is what makes electroplating and electrolysis quantitative rather than approximate. Since 2019 it is exact, being the elementary charge times the Avogadro constant, both of which are now defined.
Factors & digit properties
- Divisors (8)
- 1, 5, 23, 115, 839, 4195, 19297, 96485
- Prime factorisation
- 5 × 23 × 839
- Digit sum
- 32
- Digital root
- 5
Representations
- Decimal
- 96485
- Scientific notation
- 9.649 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 1 1 1 1 0 0 0 1 1 1 0 0 1 0 1
1 × 65,536 + 0 × 32,768 + 1 × 16,384 + 1 × 8,192 + 1 × 4,096 + 1 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 96,485
Octal
2 7 4 3 4 5
2 × 32,768 + 7 × 4,096 + 4 × 512 + 3 × 64 + 4 × 8 + 5 × 1 = 96,485
Hexadecimal
1 7 8 e 5
1 × 65,536 + 7 × 4,096 + 8 × 256 + e × 16 + 5 × 1 = 96,485
Read as powers of two: 65,536 + 16,384 + 8,192 + 4,096 + 2,048 + 128 + 64 + 32 + 4 + 1 = 96,485.
In historical numeral systems
Egyptian
9 fingers, 6 lotuses, 4 coils of rope, 8 hobbles, 5 strokes
9 × 10,000 + 6 × 1,000 + 4 × 100 + 8 × 10 + 5 × 1 = 96,485. 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
Science
The charge carried by one mole of electrons is 96,485 coulombs (worldwide, SI). It is what makes electroplating quantitative: the mass deposited is the current times the time divided by this, scaled by the ion's charge. Faraday established the proportionality in the 1830s without knowing what an electron was.
DocumentedScienceGeography: worldwide, SI
Common questions
Is 96,485 a prime number?
No, 96,485 is not prime.
What are the factors of 96,485?
The factors of 96,485 are 1, 5, 23, 115, 839, 4195, 19297, 96485.
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