Number
-47
- Negative
- Odd
- 2 digits
-47 is an odd 2-digit integer and the negative of 47. It has 2 divisors and a digital root of 2.
Number properties
ParityOddnot divisible by 2
SignNegative
Absolute value47
Digit count2
Digit sum11
Digital root2repeated digit sum
PalindromicNoreads differently backwards
Factors & divisors
Prime factorisation−1 × 47
Distinct prime factors147
Number of divisors2
Sum of divisors σ(n)48
SquarefreeYesno repeated prime factor
All divisors1, 472 in total
Arithmetic
Representations
Decimal-47
Binary1011116 bits
Octal57
Hexadecimal2F
Base 361B
In wordsminus forty-seven
Ordinalminus forty-seventh
Scientific notation-4.7 × 10^1
Engineering notation-47
Powers & multiples
-47 to the power 22,209
-47 to the power 3-103,823
-47 to the power 44,879,681
-47 to the power 5-229,345,007
First ten multiples-47, -94, -141, -188, -235, -282, -329, -376, -423, -470
Powers of twoBetween 2^5 (32) and 2^6 (64)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 3
Divisible by 5No, remainder 2
Divisible by 6No, remainder 5
Divisible by 7No, remainder 5
Divisible by 8No, remainder 7
Divisible by 9No, remainder 2
Divisible by 10No, remainder 7
Divisible by 11No, remainder 3
Divisible by 12No, remainder 11
Divisible by 100No, remainder 47
As a percentage & fraction
As a percentage-4,700%
-47% as a decimal-0.47
-47% of 100-47
-47% of 1,000-470
As a fraction of 100-47/100
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