Number 642

Interestingness: 4

Visual representations

Binary image (n×n bits)
23107
Prime factorization

Representations of 642

χμβʹ
६४२
DCXLII

●●
▃▃▃▃▃
▃▃▃▃▃
●●
六百四十二
תרמב
𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆
𓏹𓏹
-........-..---

642 in different numeral systems

Binary
1010000010
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
Hex
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 × 3 × 107

Number-theory characteristics (4)

Odious number Even Composite Abundant

Related primes

Number 642 prime
Prime number before 642
Prime number after 642