Recognised as Number
-949
- Negative
- Odd
- 3 digits
-949 is an odd 3-digit integer and the negative of 949. It has 4 divisors and a digital root of 4.
Number properties
ParityOddnot divisible by 2
SignNegative
Absolute value949
Digit count3
Digit sum22
Digit product324
Multiplicative persistence3times the digit product can be taken before one digit is left
Digital root4repeated digit sum
PalindromicYesreads the same backwards
Factors & divisors
Prime factorisation−1 × 13 × 73
Distinct prime factors213, 73
Number of divisors4
Sum of divisors σ(n)1,036
SquarefreeYesno repeated prime factor
All divisors1, 13, 73, 9494 in total
Arithmetic
Representations
Decimal-949
Binary111011010110 bits
Octal1665
Hexadecimal3B5
Base 36QD
In wordsminus nine hundred and forty-nine
Ordinalminus nine hundred and forty-ninth
Scientific notation-9.49 × 10^2
Engineering notation-949
In other bases
Ternary1022011base 3; the most digit-efficient integer base after e: 7 digits
Quinary12244base 5; one hand: 5 digits
Septenary2524base 7: 4 digits
Nonary1264base 9; each digit is two ternary digits: 4 digits
Duodecimal671base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 3 digits
Vigesimal279base 20; hands and feet, and the Mayan and Yoruba systems: 3 digits
Sexagesimal15:49base 60; Babylonian, and still how an hour and a circle are divided: 2 digits
Balanced ternaryTT010TTdigits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary110001011111base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
1111110001001011
Bit length10 bitsto write the magnitude
Set bits7the population count, or Hamming weight
Zero bits3within that length
Bit parityodd7 set bits, so odd; not the same as the number itself being odd
Highest set bitbit 9worth 512
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes203 b5
Gray code1001101111n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
16-bit1111110001001011two's complement
32-bit11111111111111111111110001001011two's complement
64-bit1111111111111111111111111111111111111111111111111111110001001011two's complement
One's complement0000001110110100at 16 bits, every bit flipped
Bits reversed1101001000111111at 16 bits
Rotated left by 11111100010010111at 16 bits, wrapping
Shifted left by 1-11101101010= -1,898, no wrap
Shifted right by 1-111011011= -474, discarding the low bit
These bits as a double4.68868298 × 10^-321≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Powers & multiples
-949 to the power 2900,601
-949 to the power 3-854,670,349
-949 to the power 4811,082,161,201
-949 to the power 5-769,716,970,979,749
First ten multiples-949, -1,898, -2,847, -3,796, -4,745, -5,694, -6,643, -7,592, -8,541, -9,490
Powers of twoBetween 2^9 (512) and 2^10 (1,024)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 1
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 1
Divisible by 7No, remainder 4
Divisible by 8No, remainder 5
Divisible by 9No, remainder 4
Divisible by 10No, remainder 9
Divisible by 11No, remainder 3
Divisible by 12No, remainder 1
Divisible by 100No, remainder 49
As a percentage & fraction
As a percentage-94,900%
-949% as a decimal-9.49
-949% of 100-949
-949% of 1,000-9,490
As a fraction of 100-949/100
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