14049
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 23296
- Proper Divisor Sum (Aliquot Sum)
- 9247
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7992
- Möbius Function
- 0
- Radical
- 4683
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 3
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
- 81
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- a(1) = 7; a(n+1) = a(n)-th composite.at n=34A025011
- Multiplicity of highest weight (or singular) vectors associated with character chi_184 of Monster module.at n=39A034572
- a(n) = (n+3)^3 - n^3.at n=37A038865
- T(n,n), array T as in A047130.at n=9A047132
- a(n) = 3^n mod n^3.at n=25A066607
- Expansion of (1-x)/(1+2*x+2*x^2-x^3).at n=18A078068
- Average of 4 primes where the integer Schwarzian derivative is zero.at n=17A094903
- a(n) = 2*a(n-1) - [(n+1)/3] for n>0 with a(0) = 1.at n=15A136169
- a(1) = 1; a(n) = a(n-1) + (n!)^3.at n=3A138564
- a(n) = 729*n - 531.at n=19A156771
- Sum of a positive square and a positive cube in at least three ways.at n=21A171385
- Expansion of (1+x)^3/(1-x-2*x^2-x^3+x^4).at n=12A300438
- Triangle read by rows: T(n,k) is the number of 3-stack-sortable permutations of [n] with k descents (0 <= k <= n-1).at n=47A324916
- Triangle read by rows: T(n,k) is the number of 3-stack-sortable permutations of [n] with k descents (0 <= k <= n-1).at n=52A324916
- Number of integer partitions of n that are empty, or have smallest part dividing all the others, but do not have greatest part divisible by all the others.at n=36A343345
- Number of ternary strings of length n avoiding the substrings 00, 11, 22, 121, 212, 202.at n=19A373447
- Number of solid partitions with multiplicities (1, ..., n).at n=4A385373