Number
-39
- Negative
- Odd
- 2 digits
-39 is an odd 2-digit integer and the negative of 39. It has 4 divisors and a digital root of 3.
Number properties
ParityOddnot divisible by 2
SignNegative
Absolute value39
Digit count2
Digit sum12
Digital root3repeated digit sum
PalindromicNoreads differently backwards
Factors & divisors
Prime factorisation−1 × 3 × 13
Distinct prime factors23, 13
Number of divisors4
Sum of divisors σ(n)56
SquarefreeYesno repeated prime factor
All divisors1, 3, 13, 394 in total
Arithmetic
Representations
Decimal-39
Binary1001116 bits
Octal47
Hexadecimal27
Base 3613
In wordsminus thirty-nine
Ordinalminus thirty-ninth
Scientific notation-3.9 × 10^1
Engineering notation-39
Powers & multiples
-39 to the power 21,521
-39 to the power 3-59,319
-39 to the power 42,313,441
-39 to the power 5-90,224,199
First ten multiples-39, -78, -117, -156, -195, -234, -273, -312, -351, -390
Powers of twoBetween 2^5 (32) and 2^6 (64)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3Yes
Divisible by 4No, remainder 3
Divisible by 5No, remainder 4
Divisible by 6No, remainder 3
Divisible by 7No, remainder 4
Divisible by 8No, remainder 7
Divisible by 9No, remainder 3
Divisible by 10No, remainder 9
Divisible by 11No, remainder 6
Divisible by 12No, remainder 3
Divisible by 100No, remainder 39
As a percentage & fraction
As a percentage-3,900%
-39% as a decimal-0.39
-39% of 100-39
-39% of 1,000-390
As a fraction of 100-39/100
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