16,777,216
16,777,216 is 2 to the power of 24 — the number of colours in 24-bit 'true colour'.
Where 16,777,216 fits
Why 16,777,216 is special
Eight bits each for red, green and blue give 16.7 million combinations, comfortably more than the eye can distinguish, which is why 24-bit colour became the standard rather than a stage on the way to something higher. The same number is the largest integer a 32-bit float can represent exactly.
16,777,216 is part of
Factors & digit properties
- Divisors (25)
- 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216
- Prime factorisation
- 2^24
- Digit sum
- 37
- Digital root
- 1
Representations
- Decimal
- 16777216
- Binary
- 1000000000000000000000000
- Octal
- 100000000
- Hexadecimal
- 1000000
- Scientific notation
- 1.678 × 10^7
Other mathematical patterns
- Deficient number
- Powerful number
Related numbers & connections
2²⁴, the number of colours in 24-bit RGB and the largest integer a 32-bit float holds exactly.
Silicon is melted at about 1,414 degrees to grow the single crystals every chip is cut from, and 24-bit colour depends on the chips that result. The material and the display standard are two ends of the same industry.
View 1414 →Technology & computing
Eight bits each for red, green and blue give 16,777,216 combinations, which is comfortably beyond what the eye distinguishes — which is why 24-bit colour settled as the standard rather than being a step toward something deeper. The same number is the largest integer a 32-bit float represents exactly.
DocumentedTechnology & computing
Common questions
Is 16,777,216 a prime number?
No, 16,777,216 is not prime.
What are the factors of 16,777,216?
The factors of 16,777,216 are 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216.
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: 3 August 2026