12014
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 18024
- Proper Divisor Sum (Aliquot Sum)
- 6010
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6006
- Möbius Function
- 1
- Radical
- 12014
- 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
- 42
- 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 92.at n=25A020431
- Positive numbers k such that k and 3*k are anagrams in base 5 (written in base 5).at n=7A023062
- Numbers whose base-4 representation contains exactly four 2's and three 3's.at n=14A045156
- Numbers k such that the number of primes <= k is phi(phi(k)).at n=19A063999
- Number of rectangular standard Young tableaux with n cells.at n=14A067228
- Semiprimes of the form 2*(m^2 + m + 1) (implying that m^2 + m + 1 is a prime).at n=26A107317
- Cumulative sum of absolute values of coefficients of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=32A109471
- "Spanning Hamiltonian walks" on the square lattice (see Jensen web site for further information).at n=4A121789
- E.g.f.: A(x) = 1 + Sum_{n>=1} (1/n!)*Product_{k=1..n} -log(1 - (2k-1)x).at n=5A171778
- a(n) = Floor(Fibonacci(n)^(1/Pi)).at n=63A171962
- Position of 3^n in A051037 (5-smooth numbers).at n=39A188426
- Braille natural numbers (including zero), using "0" as digit concatenation mark.at n=23A220090
- Floor(1/s(n)), where s(n) = (2n+1)/(2n+2) - n*log((n+1)/n).at n=43A227721
- Number of (n+1) X (n+1) 0..2 arrays with the maximum plus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=2A237226
- Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=2A237229
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=12A237234
- Numbers whose sum of anti-divisors is equal to the sum of the divisors of their arithmetic derivative.at n=17A249912
- Total number of points on a sphere when both poles are on an x by x grid where x=8*n+1.at n=38A254527
- Positive integers m such that pi(m^2) = pi(j^2) + pi(k^2) for no 0 < j <= k < m.at n=43A262408
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 589", based on the 5-celled von Neumann neighborhood.at n=22A273113