Number 1491

Interestingness: 6

Visual representations

Binary image (n×n bits)
Nonagonal · P9(21) = 1491
3771
Prime factorization

Representations of 1491

͵αυϟαʹ
१४९१
١٤٩١
MCDXCI
●●●
●●●●
▃▃▃▃▃
▃▃▃▃▃

▃▃▃▃▃
▃▃▃▃▃
一千四百九十一
א׳ תצא
𓆼
𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
𓏹
.----....-----..----

1491 in different numeral systems

Binary
10111010011
Base-3
Base-4
Base-5
Base-6
Base-7
Base-8
Duodecimal
a43
Hex
5d3
Vigesimal
3eb
Base-24
2e3
Base-36
15f
Negabinary
1101011010111

Factorization

Prime factors: 3, 7, 71
Divisors: 1, 3, 7, 21, 71, 213, 497, 1491
Sum of divisors other than 1491: 813
Product of prime factors: 1491 = 3 × 7 × 71

Number-theory characteristics (6)

Nonagonal Difference of 2 squares Odious number Odd Composite Deficient

Related primes

Number 1491 prime
Prime number before 1491
Prime number after 1491