14206
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
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 21312
- Proper Divisor Sum (Aliquot Sum)
- 7106
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7102
- Möbius Function
- 1
- Radical
- 14206
- 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
- 151
- Smith Number
- yes
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence for CaF2(1), F position.at n=40A009924
- a(1)=1, a(n) = n*15^(n-1) + a(n-1).at n=3A014930
- Number of terms in n-th derivative of a function composed with itself 4 times.at n=14A022812
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 68 ones.at n=15A031836
- a(n) = 1 + 2*n + 3*n^2 + 4*n^3.at n=15A056578
- Number of (n+1)X2 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.at n=3A205057
- Number of (n+1)X5 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.at n=0A205060
- T(n,k) is the number of (n+1) X (k+1) 0..2 arrays with rows and columns of permanents of all 2 X 2 subblocks lexicographically nondecreasing.at n=6A205063
- T(n,k) is the number of (n+1) X (k+1) 0..2 arrays with rows and columns of permanents of all 2 X 2 subblocks lexicographically nondecreasing.at n=9A205063
- Number of (n+1)X5 0..2 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.at n=0A205202
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.at n=6A205206
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.at n=9A205206
- Combinatorial configuration types of n (unlabeled) queens on a square board.at n=4A238844
- The crystallogen sequence (a(n) = A018227(n)-4).at n=40A271996
- Numbers k such that (8*10^k - 83)/3 is prime.at n=16A293851
- Number of n X 5 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.at n=9A305479