Number 21990

Interestingness: 6

Visual representations

Binary image (n×n bits)
235733
Prime factorization

Representations of 21990

Greek numeral
β
Μ
͵αϡϟ
Sanskrit numeral
२१९९०
Arabic numeral
٢١٩٩٠
Roman numeral
XXMCMXC
Maya numeral
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Chinese numeral
二万一千九百九十
Hebrew numeral
כא׳ תתקצ
Egyptian numeral
𓂭𓂭
𓆼
𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Morse code
..---.--------.----.-----

21990 in different numeral systems

Binary
101010111100110
Base-3
1010011110
Base-4
11113212
Base-5
1200430
Base-6
245450
Base-7
121053
Base-8
52746
Duodecimal
10886
Hex
55e6
Vigesimal
2eja
Base-24
1e46
Base-36
gyu
Negabinary
11010101000111010

Factorization

Prime factors: 2, 3, 5, 733
Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 733, 1466, 2199, 3665, 4398, 7330, 10995, 21990
Sum of divisors other than 21990: 30858
Product of prime factors: 21990 = 2 × 3 × 5 × 733

Number-theory characteristics (4)

Odious number Even Composite Abundant

Base-10 digit properties (2)

These depend on the decimal representation of the number.

Duck number Happy number

Related primes

Prime number before 21990
Prime number after 21990