9194
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 13794
- Proper Divisor Sum (Aliquot Sum)
- 4600
- 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
- 4596
- Möbius Function
- 1
- Radical
- 9194
- 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
- 47
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 47.at n=17A020386
- Numbers k such that 69*2^k+1 is prime.at n=20A032384
- Number of partitions of n into parts not of the form 15k, 15k+4 or 15k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 6 are greater than 1.at n=36A035958
- Sum of even-indexed primes.at n=43A077126
- a(n) = A083710(n) - A000041(n-1).at n=65A083711
- a(n) = Sum {k + j*m <= n} (k + j*m), with 0 < k,j,m <= n.at n=21A106847
- Tanimoto triangle read by rows: T(n,k) = number of "parity-alternating permutations" (PAPS) of n symbols with k ascents.at n=49A125300
- Tanimoto triangle read by rows: T(n,k) = number of "parity-alternating permutations" (PAPS) of n symbols with k ascents.at n=50A125300
- Numerator of Bernoulli(n, 3/7).at n=7A158514
- Numbers m such that m^2 is an anagram of a Fibonacci number.at n=14A162391
- Parameters k for which the Tate-Shafarevich group Ш of the elliptic curve y^2=x^3-k has order 36.at n=4A179138
- Upper Beatty array of sqrt(3).at n=28A182786
- Number of simple mixed arrangements of n pseudolines and 1 double pseudoline in the projective plane.at n=6A191951
- Numbers k such that k divides 1 + Sum_{j=1..k} prime(j)^15.at n=16A233413
- Number of partitions of n containing m(4) as a part, where m denotes multiplicity.at n=38A240489
- a(n) = 3*B*C*(n mod A) + 5*A*C*(n mod B) + 2*A*B*(n mod C) with A=7, B=11, C=17.at n=30A256668
- Number of nX3 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.at n=4A296594
- Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.at n=2A296596
- T(n,k) = Number of n X k 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 3 neighboring 1's.at n=23A296599
- T(n,k) = Number of n X k 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 3 neighboring 1's.at n=25A296599