Recognised as Number
-266
- Negative
- Even
- 3 digits
-266 is an even 3-digit integer and the negative of 266. It has 8 divisors and a digital root of 5.
Number properties
ParityEvendivisible by 2
SignNegative
Absolute value266
Digit count3
Digit sum14
Digit product72
Multiplicative persistence3times the digit product can be taken before one digit is left
Digital root5repeated digit sum
PalindromicNoreads differently backwards
Factors & divisors
Prime factorisation−1 × 2 × 7 × 19
Distinct prime factors32, 7, 19
Number of divisors8
Sum of divisors σ(n)480
SquarefreeYesno repeated prime factor
All divisors1, 2, 7, 14, 19, 38, 133, 2668 in total
Arithmetic
Representations
Decimal-266
Binary1000010109 bits
Octal412
Hexadecimal10A
Base 367E
In wordsminus two hundred and sixty-six
Ordinalminus two hundred and sixty-sixth
Scientific notation-2.66 × 10^2
Engineering notation-266
In other bases
Ternary100212base 3; the most digit-efficient integer base after e: 6 digits
Quinary2031base 5; one hand: 4 digits
Septenary530base 7: 3 digits
Nonary325base 9; each digit is two ternary digits: 3 digits
Duodecimal1a2base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 3 digits
Vigesimald6base 20; hands and feet, and the Mayan and Yoruba systems: 2 digits
Sexagesimal4:26base 60; Babylonian, and still how an hour and a circle are divided: 2 digits
Balanced ternaryT0T011digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary1100001010base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
1111111011110110
Bit length9 bitsto write the magnitude
Set bits3the population count, or Hamming weight
Zero bits6within that length
Bit parityodd3 set bits, so odd; not the same as the number itself being even
Highest set bitbit 8worth 256
Lowest set bitbit 11 trailing zero
Power of twoNo
Bytes201 0a
Gray code110001111n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
16-bit1111111011110110two's complement
32-bit11111111111111111111111011110110two's complement
64-bit1111111111111111111111111111111111111111111111111111111011110110two's complement
One's complement0000000100001001at 16 bits, every bit flipped
Bits reversed0110111101111111at 16 bits
Rotated left by 11111110111101101at 16 bits, wrapping
Shifted left by 1-1000010100= -532, no wrap
Shifted right by 1-10000101= -133, discarding the low bit
These bits as a double1.31421462 × 10^-321≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Powers & multiples
-266 to the power 270,756
-266 to the power 3-18,821,096
-266 to the power 45,006,411,536
-266 to the power 5-1,331,705,468,576
First ten multiples-266, -532, -798, -1,064, -1,330, -1,596, -1,862, -2,128, -2,394, -2,660
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 2
Divisible by 4No, remainder 2
Divisible by 5No, remainder 1
Divisible by 6No, remainder 2
Divisible by 7Yes
Divisible by 8No, remainder 2
Divisible by 9No, remainder 5
Divisible by 10No, remainder 6
Divisible by 11No, remainder 2
Divisible by 12No, remainder 2
Divisible by 100No, remainder 66
As a percentage & fraction
As a percentage-26,600%
-266% as a decimal-2.66
-266% of 100-266
-266% of 1,000-2,660
As a fraction of 100-266/100
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