4246
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 6984
- Proper Divisor Sum (Aliquot Sum)
- 2738
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1920
- Möbius Function
- -1
- Radical
- 4246
- 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
- 33
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence T1 for Zeolite Code AET.at n=45A008007
- Coordination sequence T2 for Zeolite Code AET.at n=45A008008
- Coordination sequence T1 for Zeolite Code RUT.at n=43A009897
- Number of partitions of n into its nonprime divisors with at least one part of size 1.at n=71A014651
- Numbers k such that the continued fraction for sqrt(k) has period 54.at n=15A020393
- a(n) = T(n,n-1), where T is array defined in A025564.at n=9A025565
- a(n) = 2*(3^n) - 2^n.at n=7A027649
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 64.at n=11A031562
- Concatenation of n and n + 4 or {n,n+4}.at n=41A032609
- Numbers k such that the k-th Fibonacci number reversed is prime.at n=21A036971
- Coordination sequence T2 for Zeolite Code STT.at n=43A038423
- Numbers whose base-5 representation contains exactly three 1's and two 4's.at n=33A045261
- Number of 2n-bead balanced binary strings, rotationally equivalent to reverse, complement and reversed complement.at n=16A045656
- a(n)=T(n,n+1), array T as in A049723.at n=36A049729
- Multiples of 11 having only even digits.at n=38A061832
- Positive numbers whose product of digits is 12 times their sum.at n=37A062045
- Smallest multiple of n-th prime with all even digits.at n=43A062281
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 89 ).at n=13A063362
- a(n) = 3*n^3 + 2*n^2 + n.at n=11A067389
- Numbers m such that [A070080(m), A070081(m), A070082(m)] is an acute scalene integer triangle with prime side lengths.at n=11A070123