Number
-22
- Negative
- Even
- 2 digits
-22 is an even 2-digit integer and the negative of 22. It has 4 divisors and a digital root of 4.
Number properties
ParityEvendivisible by 2
SignNegative
Absolute value22
Digit count2
Digit sum4
Digital root4repeated digit sum
PalindromicYesreads the same backwards
Factors & divisors
Prime factorisation−1 × 2 × 11
Distinct prime factors22, 11
Number of divisors4
Sum of divisors σ(n)36
SquarefreeYesno repeated prime factor
All divisors1, 2, 11, 224 in total
Arithmetic
Representations
Decimal-22
Binary101105 bits
Octal26
Hexadecimal16
Base 36M
In wordsminus twenty-two
Ordinalminus twenty-second
Scientific notation-2.2 × 10^1
Engineering notation-22
Powers & multiples
-22 to the power 2484
-22 to the power 3-10,648
-22 to the power 4234,256
-22 to the power 5-5,153,632
First ten multiples-22, -44, -66, -88, -110, -132, -154, -176, -198, -220
Powers of twoBetween 2^4 (16) and 2^5 (32)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 1
Divisible by 4No, remainder 2
Divisible by 5No, remainder 2
Divisible by 6No, remainder 4
Divisible by 7No, remainder 1
Divisible by 8No, remainder 6
Divisible by 9No, remainder 4
Divisible by 10No, remainder 2
Divisible by 11Yes
Divisible by 12No, remainder 10
Divisible by 100No, remainder 22
As a percentage & fraction
As a percentage-2,200%
-22% as a decimal-0.22
-22% of 100-22
-22% of 1,000-220
As a fraction of 100-22/100
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