43,200
43,200 is the number of seconds in twelve hours.
- Even
- Composite
Where 43,200 fits
Why 43,200 is special
Half of 86,400, and the period of an analogue clock's hour hand — which is why the same displayed time occurs twice a day and why timestamps that drop the meridiem are ambiguous. It is also a highly composite figure, divisible by every integer from 1 to 10 except 7.
Factors & digit properties
- Divisors (84)
- 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 135, 144, 150, 160, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 360, 400, 432, 450, 480, 540, 576, 600, 675, 720, 800, 864, 900, 960, 1080, 1200, 1350, 1440, 1600, 1728, 1800, 2160, 2400, 2700, 2880, 3600, 4320, 4800, 5400, 7200, 8640, 10800, 14400, 21600, 43200
- Prime factorisation
- 2^6 × 3^3 × 5^2
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 43200
- Scientific notation
- 4.320 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 1 0 1 0 0 0 1 1 0 0 0 0 0 0
1 × 32,768 + 0 × 16,384 + 1 × 8,192 + 0 × 4,096 + 1 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 43,200
Octal
1 2 4 3 0 0
1 × 32,768 + 2 × 4,096 + 4 × 512 + 3 × 64 + 0 × 8 + 0 × 1 = 43,200
Hexadecimal
a 8 c 0
a × 4,096 + 8 × 256 + c × 16 + 0 × 1 = 43,200
Read as powers of two: 32,768 + 8,192 + 2,048 + 128 + 64 = 43,200.
In historical numeral systems
Egyptian
4 fingers, 3 lotuses, 2 coils of rope
4 × 10,000 + 3 × 1,000 + 2 × 100 = 43,200. 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
- Powerful number
- Harshad (Niven) number
Common questions
Is 43,200 a prime number?
No, 43,200 is not prime.
What are the factors of 43,200?
The factors of 43,200 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 135, 144, 150, 160, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 360, 400, 432, 450, 480, 540, 576, 600, 675, 720, 800, 864, 900, 960, 1080, 1200, 1350, 1440, 1600, 1728, 1800, 2160, 2400, 2700, 2880, 3600, 4320, 4800, 5400, 7200, 8640, 10800, 14400, 21600, 43200.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.