Number 21280

Interestingness: 6

Visual representations

Binary image (n×n bits)
2⁵5719
Prime factorization

Representations of 21280

β
Μ
͵ασπ
२१२८०
٢١٢٨٠
XXMCCLXXX
●●
●●●
▃▃▃▃▃
▃▃▃▃▃
●●●●
二万一千二百八十
כא׳ רפ
𓂭𓂭
𓆼
𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
..---.----..------..-----

21280 in different numeral systems

Binary
101001100100000
Base-3
1002012011
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
Hex
Vigesimal
2d40
Base-24
1cmg
Base-36
gf4
Negabinary
101011101100000

Factorization

Prime factors: 2, 5, 7, 19
Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1064, 1120, 1330, 1520, 2128, 2660, 3040, 4256, 5320, 10640, 21280
Sum of divisors other than 21280: 39200
Product of prime factors: 21280 = 2 × 2 × 2 × 2 × 2 × 5 × 7 × 19

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

Prime number before 21280
Prime number after 21280