Number 642

Representations of 642
Greek numeral
χμβʹ
Arabic numeral
٦٤٢
Roman numeral
DCXLII
Maya numeral
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Chinese numeral
六百四十二
Hebrew numeral
תרמב
642 in different numeral systems
Binary
1010000010
Base-3
212210
Base-4
22002
Base-5
10032
Base-6
2550
Base-7
1605
Base-8
1202
Duodecimal
456
Hex
282
Vigesimal
1c2
Base-24
12i
Base-36
hu
Negabinary
11110000110
Factorization
Prime factors
2, 3, 107
Divisors
1, 2, 3, 6, 107, 214, 321, 642
Sum of divisors other than 642
654
Product of prime factors
642 = 2 x 3 x 107
Characteristics
Even Composite Abundant
Related primes
Number 642 prime
4783
Prime number before 642
641
Prime number after 642
643