Number 21901

Interestingness: 7

Visual representations

Binary image (n×n bits)
Pentagonal · P5(121) = 21901
11²181
Prime factorization

Representations of 21901

Greek numeral
β
Μ
͵αϡαʹ
Sanskrit numeral
२१९०१
Arabic numeral
٢١٩٠١
Roman numeral
XXMCMI
Maya numeral
●●
●●●●
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
●
Chinese numeral
二万一千九百零一
Hebrew numeral
כא׳ תתקא
Egyptian numeral
𓂭𓂭
𓆼
𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓏹
Morse code
..---.--------.-----.----

21901 in different numeral systems

Binary
101010110001101
Base-3
1010001011
Base-4
11112031
Base-5
1200101
Base-6
245221
Base-7
120565
Base-8
52615
Duodecimal
10811
Hex
558d
Vigesimal
2ef1
Base-24
1e0d
Base-36
gwd
Negabinary
11010101010011101

Factorization

Prime factors: 11, 181
Divisors: 1, 11, 121, 181, 1991, 21901
Sum of divisors other than 21901: 2305
Product of prime factors: 21901 = 11 × 11 × 181

Number-theory characteristics (6)

Pentagonal Difference of 2 squares Evil number Odd Composite Deficient

Base-10 digit properties (1)

These depend on the decimal representation of the number.

Duck number

Related primes

Prime number before 21901
Prime number after 21901