Number: 4

Previous Number: 3
Next Number: 5
Absolute: 4
Sign: positive
Even or Odd: Even
Length: 1 digit (Significant Figures, Sig Fig)
Counter: -4
Inverse: 0.25
Reverse: 4 ; Palindromic: Yes
Half: 2
Double: 8
Undulating: Yes
Fibonacci: No
Fibonacci Prime: No
Evil or Odious: Odious
Lucas: Yes ; Previous: 3 ; Next: 7
Narcissistic: Yes ; Previous: 3 ; Next: 5
Pell: No
Octagonal: No
Centered Octagonal: No
Untouchable: No
AZ Alphabet Character: D
AZ Alphabet Character, Backwards: W
QWERTY Alphabet Character: R
QWERTY Alphabet Character, Backwards: V
Valid phone number (US)?: No
Valid SSN (US)?: No
Human Readable Size (Kilo: 1000): 4B
Human Readable Size (Kibi: 1024): 4B
UNIX Time Stamp: 1970-01-01 00:00:04
HTTP Status Code: Invalid
Digits in English (and NATO IPA): four
Digits in Morse Code: ....-
Square Root: 2
Sine: -0.75680249530793
Cosine: -0.65364362086361
Tangent: 1.1578212823496
Inverse Tangent: 1.325817663668
Secant: -1.3213487088109
Cosecant: -1.5298856564664
Cotangent: 0.86369115445062
Inverse Cotangent: 0.7542515290024
Roman Number: IV

Number: 4


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