Number 21840

Representations of 21840
Greek numeral
β
Μ
͵αωμ
Arabic numeral
٢١٨٤٠
Roman numeral
XXMDCCCXL
Maya numeral
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ↂ
Chinese numeral
二万一千八百四十
Hebrew numeral
כא׳ תתמ
21840 in different numeral systems
Binary
101010101010000
Base-3
1002221220
Base-4
11111100
Base-5
1144330
Base-6
245040
Base-7
120450
Base-8
52520
Duodecimal
10780
Hex
5550
Vigesimal
2ec0
Base-24
1dm0
Base-36
guo
Negabinary
101010101010000
Factorization
Prime factors
2, 3, 5, 7, 13
Divisors
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 21840
Sum of divisors other than 21840
61488
Product of prime factors
21840 = 2 x 2 x 2 x 2 x 3 x 5 x 7 x 13
Characteristics
Difference of 2 squares Harshad Even Composite Abundant
Related primes
Prime number before 21840
21839
Prime number after 21840
21841