Number 20640

Interestingness: 10

Visual representations

Binary image (n×n bits)
2⁵3543
Prime factorization

Representations of 20640

Greek numeral
β
Μ
χμ
Sanskrit numeral
२०६४०
Arabic numeral
٢٠٦٤٠
Roman numeral
XXDCXL
Maya numeral
●●
●
▃▃▃▃▃
▃▃▃▃▃
●●
▃▃▃▃▃
▃▃▃▃▃
ↂ
Chinese numeral
二万零六百四十
Hebrew numeral
כ׳ תרמ
Egyptian numeral
𓂭𓂭
𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆
Morse code
..---------........------

20640 in different numeral systems

Binary
101000010100000
Base-3
1001022110
Base-4
11002200
Base-5
1130030
Base-6
235320
Base-7
114114
Base-8
50240
Duodecimal
bb40
Hex
50a0
Vigesimal
2bc0
Base-24
1bk0
Base-36
fxc
Negabinary
101000111100000

Factorization

Prime factors: 2, 3, 5, 43
Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 1032, 1290, 1376, 1720, 2064, 2580, 3440, 4128, 5160, 6880, 10320, 20640
Sum of divisors other than 20640: 45888
Product of prime factors: 20640 = 2 × 2 × 2 × 2 × 2 × 3 × 5 × 43

Number-theory characteristics (6)

Difference of 2 squares Evil number Refactorable Even Composite Abundant

Base-10 digit properties (2)

These depend on the decimal representation of the number.

Harshad Duck number

Related primes

Prime number before 20640
Prime number after 20640