3262
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 5616
- Proper Divisor Sum (Aliquot Sum)
- 2354
- 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
- 1392
- Möbius Function
- -1
- Radical
- 3262
- 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
- 136
- 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
- a(n) = (n+1)*a(n-1) + (2-n)*a(n-2).at n=6A006183
- Molien series for Weyl group E_8.at n=59A008582
- Coordination sequence T3 for Zeolite Code iRON.at n=40A009883
- Number of ordered quadruples of integers from [ 2,n ] with no common factors between triples.at n=17A015639
- Fibonacci sequence beginning 0, 14.at n=13A022348
- Every prefix prime in base 7 (written in base 7).at n=15A024767
- 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 56.at n=11A031554
- Multiplicity of highest weight (or singular) vectors associated with character chi_36 of Monster module.at n=35A034424
- Multiplicity of highest weight (or singular) vectors associated with character chi_66 of Monster module.at n=36A034454
- a(i) is a square mod a(j), i <> j.at n=15A034903
- Numerators of continued fraction convergents to sqrt(681).at n=5A042308
- Numbers having three 4's in base 9.at n=10A043471
- Numbers n such that string 6,2 occurs in the base 10 representation of n but not of n-1.at n=35A044394
- Numbers n such that string 6,2 occurs in the base 10 representation of n but not of n+1.at n=35A044775
- a(n) = Bell(n+1)-Bell(n)-1, n>0.at n=7A052834
- Triangular array generated by its row sums: T(n,0) = 1 for n >= 0, T(n,1) = r(n-1), T(n,k) = T(n,k-1) - (-1)^k * r(n-k) for k = 2, 3, ..., n, n >= 2, r(h) = sum of the numbers in row h of T.at n=38A054090
- T(n,2), array T as in A054090.at n=6A054096
- Seventh column (m=6) of convolution triangle A059594(n,m).at n=6A059595
- Numbers k such that x-4, x-2, x+2, x+4 are primes, where x = 30*k - 15.at n=35A061668
- a(n) = Sum_{k=1..n} d(k)*prime(k), where d(k) = A001223.at n=21A064009