



Number 42

forty two

Properties of the number 42

Factorization 

2 * 3 * 7

Divisors 
1, 2, 3, 6, 7, 14, 21, 42

Count of divisors 
8

Sum of divisors 
96

Previous integer 
41 
Next integer 
43 
Is prime? 
NO

Previous prime 
41

Next prime 
43

42nd prime 
181

Is a Fibonacci number? 
NO

Is a Bell number? 
NO

Is a Catalan number? 
YES C_{5}

Is a factorial? 
NO

Is a regular number? 
NO

Is a perfect number? 
NO

Polygonal number (s < 11)? 
NO 
Binary 
101010 
Octal 
52 
Duodecimal 
36 
Hexadecimal 
2a 
Square 
1764 
Square root 
6.4807406984079 
Natural logarithm 
3.7376696182834 
Decimal logarithm 
1.6232492903979 
Sine 
0.91652154791563 
Cosine 
0.39998531498835 
Tangent 
2.2913879924375 

Number 42 is pronounced forty two.
Number 42 is a composite number.
Factors of 42 are 2 * 3 * 7.
Number 42 has 8 divisors: 1, 2, 3, 6, 7, 14, 21, 42.
Sum of the divisors is 96.
Number 42 is not a Fibonacci number.
It is not a Bell number.
Number 42 is a Catalan number.
Number 42 is not a regular number (Hamming number).
It is a not factorial of any number.
Number 42 is an abundant number and therefore is not a perfect number.
Binary numeral for number 42 is 101010.
Octal numeral is 52.
Duodecimal value is 36.
Hexadecimal representation is 2a.
Square of the number 42 is 1764.
Square root of the number 42 is 6.4807406984079.
Natural logarithm of 42 is 3.7376696182834
Decimal logarithm of the number 42 is 1.6232492903979
Sine of 42 is 0.91652154791563. Cosine of the number 42 is 0.39998531498835. Tangent of the number 42 is 2.2913879924375



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