6341
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6732
- Proper Divisor Sum (Aliquot Sum)
- 391
- 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
- 5952
- Möbius Function
- 1
- Radical
- 6341
- 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
- 80
- 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
- no
- Odd
- yes
Appears in sequences
- Number of equivalence classes of 4 X n binary matrices when one can permute rows, permute columns and complement columns.at n=14A006380
- a(n) = n*(11*n - 1)/2.at n=34A022268
- a(n) = Sum_{k = 1..n} k*floor((n + prime(k))/k).at n=47A024929
- a(0)=2; a(n) is the smallest k > a(n-1) such that the fractional part of k^(1/10) starts with n.at n=40A034075
- Multiplicity of highest weight (or singular) vectors associated with character chi_14 of Monster module.at n=41A034402
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 8.at n=30A051973
- Arithmetic derivative of Fibonacci numbers > 0.at n=20A068329
- a(1)=a(2)=1; a(n)=reverse(reverse(a(n-1))+reverse(a(n-2))) for n > 2.at n=18A072210
- a(1) = 2; a(n) = half of the a(n-1)-th even nontotient number.at n=8A072416
- Number of rooted trees of 2n+1 nodes with every leaf at height n.at n=17A074045
- Least m such that Phi-Composite-Harmonic series Sum_{k=1..m} 1/A000010(A002808(k)) >= n.at n=12A074470
- A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives y's for indecomposable Wallis pairs with x < y (ordered by values of x).at n=18A075769
- List of codewords in binary lexicode with Hamming distance 5 written as decimal numbers.at n=18A075931
- Number of irregular primes less than 3^n.at n=10A105458
- Number of ways of writing n as the sum of n triangular numbers.at n=10A106337
- n times pi(n) is a palindrome, where pi(n) = PrimePi(n) = A000720(n).at n=26A116054
- Abs(*+-) n Sequence.at n=39A119518
- Related to enumeration of free catapolyoctagons (see Cyvin reference for precise definition).at n=5A121122
- Ulam's spiral (NNE spoke).at n=20A143861
- Triangle, read by rows, T(n,k) = (7*n-7*k+1)*T(n-1, k-2) + (7*k-6)*T(n-1, k) + 7*T(n-2, k-1) with T(n, 1) = T(n, n) = 1.at n=12A144445