11342
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 17496
- Proper Divisor Sum (Aliquot Sum)
- 6154
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5512
- Möbius Function
- -1
- Radical
- 11342
- 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
- yes
Recreational
- Happy Number
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 81
- 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) = (3*n+1)*(3*n+2).at n=35A001504
- Sorted Galois numbers.at n=31A028689
- Product of a prime and the previous number.at n=27A036689
- Numbers of the form 12*k + 2 with nonempty inverse totient set.at n=7A063668
- Deficient oblong numbers.at n=16A077804
- a(n) = sigma_3(n) - sigma_2(n) - sigma_1(n).at n=21A092350
- Squarefree oblong (pronic) numbers having an odd number of prime factors.at n=16A098827
- Triangular matrix T, read by rows, that satisfies: [T^-1](n,k) = -(k+1)*T(n-1,k) when (n-1)>=k>=0, with T(n,n) = 1 and T(n+1,n) = (n+1) for n>=0.at n=22A106208
- Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 2.at n=35A128672
- Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 4.at n=30A128674
- Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 6.at n=37A128676
- a(n) = p*(p - 1), where p is A000043(n).at n=10A139115
- Number of n-step self-avoiding walks on a line, where step X skips X - 1 spaces.at n=18A175941
- The order of the one-dimensional affine group in the finite fields F_q with q >= 3.at n=36A220211
- Squarefree oblong numbers.at n=36A229882
- Multiplicative order of 2 modulo prime(n)^2 for n >= 2.at n=26A243905
- Numbers m such that gcd(A001008(m), m) > 1, in increasing order.at n=28A256102
- a(n) = (4*n+3)*(4*n+2).at n=26A256833
- Even numbers such that the sum of the even divisors and the sum of the odd divisors are a square or a cube.at n=19A263695
- Numbers k such that (7*10^k + 71)/3 is prime.at n=27A270831