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Number 40
Representations of 40
Greek numeral
μ
Arabic numeral
٤٠
Roman numeral
XL
Maya numeral
●●
ↂ
Chinese numeral
四十
Hebrew numeral
מ
40 in different numeral systems
Binary
101000
Base-3
1111
Base-4
220
Base-5
130
Base-6
104
Base-7
55
Base-8
50
Hex
28
Base-24
1g
Base-36
14
Factorization
Prime factors
2
,
5
Divisors
1
,
2
,
4
,
5
,
8
,
10
,
20
,
40
Sum of divisors other than 40
50
Product of prime factors
40 =
2
x
2
x
2
x
5
Characteristics
Octogonal
Even
Composite
Related primes
Number 40 prime
173
Prime number before 40
37
Prime number after 40
41