11194
domain: N
Properties
Digital Properties
- Digit Count
- 5
- 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
- 17460
- Proper Divisor Sum (Aliquot Sum)
- 6266
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5376
- Möbius Function
- -1
- Radical
- 11194
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 68
- 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
- Number of nonnegative solutions to x^2 + y^2 + z^2 <= n^2.at n=27A000604
- Numbers k such that the continued fraction for sqrt(k) has period 43.at n=27A020382
- a(n) = (2*n - 1)*(11*n^2 - 11*n + 6)/6.at n=14A063492
- Numbers m such that sigma(m+1)+sigma(m-1) = 6*phi(m).at n=13A067243
- Numbers k such that phi(k) divides (sigma(k+1) + sigma(k-1)).at n=37A067244
- Centered 13-gonal numbers.at n=41A069126
- a(n) = 7*n^2 + 14*n + 1.at n=39A131878
- Arises in enumerating iterated point-line configurations.at n=40A140744
- a(n) = floor(1/(zeta(4) - Sum_{h=1..n} 1/h^4)).at n=14A248230
- Bernoulli number B_{n} has denominator 354.at n=25A255684
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 395", based on the 5-celled von Neumann neighborhood.at n=13A281751
- Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic residues mod p that are > p/2.at n=14A282040
- Smallest even numbers with strictly increasing number of preimages under the sum-of-proper-divisors function.at n=9A283157
- Expansion of 1 / (chi(-x)^10 * chi(-x^2)^4) in powers of x where chi() is a Ramanujan theta function.at n=6A326827