Number 21980

Representations of 21980
Greek numeral
β
Μ
͵αϡπ
Arabic numeral
٢١٩٨٠
Roman numeral
XXMCMLXXX
Maya numeral
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ↂ
Chinese numeral
二万一千九百八十
Hebrew numeral
כא׳ תתקפ
21980 in different numeral systems
Binary
101010111011100
Base-3
1010011002
Base-4
11113130
Base-5
1200410
Base-6
245432
Base-7
121040
Base-8
52734
Duodecimal
10878
Hex
55dc
Vigesimal
2ej0
Base-24
1e3k
Base-36
gyk
Negabinary
11010101000101100
Factorization
Prime factors
2, 5, 7, 157
Divisors
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 10990, 21980
Sum of divisors other than 21980
31108
Product of prime factors
21980 = 2 x 2 x 5 x 7 x 157
Characteristics
Difference of 2 squares Harshad Even Composite Abundant
Related primes
Prime number before 21980
21977
Prime number after 21980
21991