Number 1640

Interestingness: 7 · Rank #781 of 1000

Visual representations

Binary image (n×n bits)
2³541
Prime factorization

Representations of 1640

Greek numeral
͵αχμ
Sanskrit numeral
१६४०
Arabic numeral
١٦٤٠
Roman numeral
MDCXL
Maya numeral
●●●●
●●
ↂ
Chinese numeral
一千六百四十
Hebrew numeral
א׳ תרמ
Egyptian numeral
𓆼
𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆
Morse code
.-----........------

1640 in different numeral systems

Binary
11001101000
Base-3
2020202
Base-4
121220
Base-5
23030
Base-6
11332
Base-7
4532
Base-8
3150
Duodecimal
b48
Hex
668
Vigesimal
420
Base-24
2k8
Base-36
19k
Negabinary
1101110111000

Factorization

Prime factors: 2, 5, 41
Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640
Sum of divisors other than 1640: 2140
Product of prime factors: 1640 = 2 × 2 × 2 × 5 × 41

Number-theory characteristics (6)

Difference of 2 squares Odious number Pronic Even Composite Abundant

Base-10 digit properties (1)

These depend on the decimal representation of the number.

Duck number

Related primes

Number 1640 prime
Prime number before 1640
Prime number after 1640