Number 1240

Interestingness: 6

Visual representations

Binary image (n×n bits)
531
Prime factorization

Representations of 1240

͵ασμ
१२४०
١٢٤٠
●●●
●●
一千二百四十
א׳ רמ
𓆼
𓈖𓈖
𓎆𓎆𓎆𓎆
.----..---....------

1240 in different numeral systems

Binary
10011011000
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
Hex
4d8
Vigesimal
Base-24
23g
Base-36
yg
Negabinary
10100101000

Factorization

Prime factors: 2, 5, 31
Divisors: 1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240
Sum of divisors other than 1240: 1640
Product of prime factors: 1240 = 2 × 2 × 2 × 5 × 31

Number-theory characteristics (5)

Difference of 2 squares Odious number Even Composite Abundant

Base-10 digit properties (1)

These depend on the decimal representation of the number.

Duck number

Related primes

Number 1240 prime
Prime number before 1240
Prime number after 1240