14954
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 22434
- Proper Divisor Sum (Aliquot Sum)
- 7480
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7476
- Möbius Function
- 1
- Radical
- 14954
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 89
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 63.at n=20A020402
- a(n) = [ (3rd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 2 mod 3}.at n=12A024399
- Rounded base-2 logarithm of A082128(n).at n=27A082129
- Consider numbers of the form ...19753197531975319, whose digits read from the right are 9,1,3,5,7,9,1,3,5,7,9,1,... Sequence gives lengths of these numbers that are primes.at n=7A090746
- Egyptian fraction representation for the cube root of 48.at n=3A132523
- Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 4,2 5,2 6,3 7,3 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155423
- Consider the function f(n)=1/(Abs(n-r)), where r is the Dottie number, A003957. Let g(n) be defined by the recursion g(n)=Cos(g(n-1)),g(0)=1. Now, a(n)=floor(f(g(n))).at n=21A180619
- Number of redundant function representations of x^x^...^x with n x's and parentheses inserted in all possible ways.at n=10A216041
- Expansion of eta(q^6)^3 * eta(q^10)^3 / (eta(q^2) * eta(q^3)^2 * eta(q^5)^2 * eta(q^30)) in powers of q.at n=43A257632
- Expansion of (1-q)^k/Product_{j=1..k} (1-q^j) for k=12.at n=36A275643
- Exponential transform of the Pell numbers.at n=7A279271
- Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.at n=19A286800
- Numbers k such that 385*2^k+1 is prime.at n=33A322998
- a(n) = 2^(2*n-2) - Catalan(n).at n=7A342906
- a(n) is the least even number k > 2 such that the sum of the lower elements and the sum of the upper elements in the Goldbach partitions of k are both divisible by 2^n, but not both divisible by 2^(n+1).at n=8A357128
- Number of partially ordered sets ("posets") covering n unlabeled elements.at n=8A381121
- Number of connected subsets of n edges of the rhombic dodecahedron up to the 48 rotations and reflections of the rhombic dodecahedron.at n=16A383981