Number 91

Representations of 91
Greek numeral
ϟαʹ
Arabic numeral
٩١
Roman numeral
XCI
Maya numeral
●●●●
●
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Chinese numeral
九十一
Hebrew numeral
צא
91 in different numeral systems
Binary
1011011
Base-3
10101
Base-4
1123
Base-5
331
Base-6
231
Base-7
160
Base-8
133
Duodecimal
77
Hex
5b
Vigesimal
4b
Base-24
3j
Base-36
2j
Negabinary
110101111
Factorization
Prime factors
7, 13
Divisors
1, 7, 13, 91
Sum of divisors other than 91
21
Product of prime factors
91 = 7 x 13
Characteristics
Triangular Hexagonal Difference of 2 squares Odd Composite Deficient
Related primes
Number 91 prime
467
Prime number before 91
89
Prime number after 91
97