Number 9999
Interestingness: 13
Visual representations
Representations of 9999
͵θϡϟθʹ
९९९९
٩٩٩٩
VXCMXCIX
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九千九百九十九
ט׳ תתקצט
𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼
𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹
𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹𓏹
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9999 in different numeral systems
Factorization
Number-theory characteristics (5)
Difference of 2 squares
Evil number
Odd
Composite
Deficient
Base-10 digit properties (4)
These depend on the decimal representation of the number.
Palindromic
Kaprekar
Repdigit
Trimorphic