13333
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 13600
- Proper Divisor Sum (Aliquot Sum)
- 267
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13068
- Möbius Function
- 1
- Radical
- 13333
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 32
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Pseudoprimes to base 5.at n=24A005936
- Odd octagonal numbers: (2n+1)*(6n+1).at n=33A014641
- Pseudoprimes to base 11.at n=31A020139
- Pseudoprimes to base 12.at n=39A020140
- Pseudoprimes to base 17.at n=33A020145
- Pseudoprimes to base 28.at n=36A020156
- Pseudoprimes to base 40.at n=40A020168
- Pseudoprimes to base 42.at n=31A020170
- Pseudoprimes to base 52.at n=38A020180
- Pseudoprimes to base 55.at n=39A020183
- Pseudoprimes to base 60.at n=28A020188
- Pseudoprimes to base 63.at n=29A020191
- Pseudoprimes to base 78.at n=31A020206
- Pseudoprimes to base 90.at n=24A020218
- Pseudoprimes to base 96.at n=40A020224
- Strong pseudoprimes to base 11.at n=6A020237
- Strong pseudoprimes to base 12.at n=11A020238
- Strong pseudoprimes to base 25.at n=12A020251
- Strong pseudoprimes to base 27.at n=19A020253
- Strong pseudoprimes to base 40.at n=15A020266