6104
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 13200
- Proper Divisor Sum (Aliquot Sum)
- 7096
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2592
- Möbius Function
- 0
- Radical
- 1526
- Omega Function (Ω)
- 5
- 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
- 155
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Symmetries in unrooted (1,3) trees on 2n vertices.at n=11A003610
- a(n) = prime(n)*(prime(n+1)-1)/2.at n=28A014303
- Number of 3's in n-th term of A022470.at n=36A022474
- Exactly half of first a(n) terms of A022300 are 1's (not known to be infinite).at n=16A025513
- a(n) = dot_product(1,2,...,n)*(6,7,...,n,1,2,3,4,5).at n=22A026046
- Numbers k such that 151*2^k+1 is prime.at n=10A032425
- Number of binary rooted trees with n nodes and height exactly 6.at n=19A036595
- (Terms in A028286)/2.at n=41A051359
- a(n) = A077700(n+1)/A077700(n).at n=16A077701
- Least positive integers, all distinct, that satisfy sum(n>0,1/a(n)^z)=0, where z=(60+I*11)/61.at n=6A084804
- a(0)=0 and for n>0, a(n) is the smallest positive integer that cannot be derived by the adding or subtracting at most three terms with values in {a(0),...,a(n-1)} allowing repeats.at n=44A096077
- Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.at n=32A099532
- Even numbers n such that n^2 is an arithmetic number.at n=26A107924
- a(n) = 2*n*(4*n-3).at n=28A139271
- a(n) = (1 + 3*n)*(4 + 3*n)/2.at n=36A145910
- a(n) = 343*n - 70.at n=17A157374
- Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n, having no ascents and no descents of length 1, and having k peaks at odd level.at n=66A167634
- Second terms "b" of quadruples a>b>c>d>0 with six square pairwise sums.at n=31A175536
- The magic constants of 6 X 6 magic squares composed of consecutive primes.at n=27A177434
- Number of 2nX4 0..2 arrays with values 0..2 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors.at n=2A198475