14619
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 21312
- Proper Divisor Sum (Aliquot Sum)
- 6693
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8840
- Möbius Function
- -1
- Radical
- 14619
- Omega Function (Ω)
- 3
- 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
- 195
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Number of dyslexic planted planar trees with n+1 nodes where any 2 subtrees extending from the same node are different sizes.at n=14A032047
- Number of partitions satisfying (cn(2,5) = cn(3,5) and cn(0,5) <= cn(1,5) and cn(0,5) <= cn(4,5) and cn(2,5) <= cn(1,5) and cn(2,5) <= cn(4,5)).at n=52A036811
- Number of step shifted (decimated) sequence structures using exactly four different symbols.at n=10A056398
- Number of primitive (aperiodic) step shifted (decimated) sequence structures using exactly four different symbols.at n=10A056408
- a(n) = Sum_{i=1..n} i*(n^(n-i-1) + n^(n+i-1)).at n=2A068793
- First differences of A084449.at n=40A084465
- a(0) = 1, a(1) = 1; for n>0, a(2*n) = 3*a(2n-1), a(2*n+1) = 3*a(2*n) - 2*a(n-1).at n=10A102877
- Sum of trapezoid weights of all Motzkin paths of length n.at n=10A104574
- The number of compositions of n which cannot be viewed as stacks.at n=15A115981
- a(n) = 121*n^2 - 2*n.at n=10A157040
- Floor of inverse of Minkowski's constant.at n=11A174198
- Partial sums of A002833.at n=6A174627
- a(n) = n^4 - 2n.at n=11A246767
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 585", based on the 5-celled von Neumann neighborhood.at n=17A283138
- Expansion of Product_{k>=1} 1/(1 - k*x^(k^2)).at n=46A285245
- Triangle read by rows: T(n,k) = number of step shifted (decimated) sequence structures of length n using exactly k different symbols.at n=58A288620
- Number of compositions of n with all adjacent parts (x, y) satisfying x > 2y or y = 2x.at n=59A342336