Number 728

Interestingness: 8 · Rank #530 of 1000

Visual representations

Binary image (n×n bits)
713
Prime factorization

Representations of 728

ψκηʹ
७२८
DCCXXVIII


▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
●●●
▃▃▃▃▃
七百二十八
תשכח
𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆
𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹
--.....------..

728 in different numeral systems

Binary
1011011000
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
Hex
2d8
Vigesimal
1g8
Base-24
Base-36
k8
Negabinary
11100101000

Factorization

Prime factors: 2, 7, 13
Divisors: 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
Sum of divisors other than 728: 952
Product of prime factors: 728 = 2 × 2 × 2 × 7 × 13

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.

Smith

Related primes

Number 728 prime
Prime number before 728
Prime number after 728