17300
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
- 1
Divisibility
- Divisor Count
- 18
- Divisor Sum
- 37758
- Proper Divisor Sum (Aliquot Sum)
- 20458
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6880
- Möbius Function
- 0
- Radical
- 1730
- 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
- 141
- 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
- a(0) = 1, a(n) = 18*n^2 + 2 for n>0.at n=31A010008
- a(n) = a(n-2) + 2*a(n-3), n > 3; with a(0)=0, a(1)=1, a(2)=2, a(3)=0.at n=25A134271
- Row sums of A154685.at n=24A151675
- Numbers n such that there is no square n-gonal number greater than 1.at n=23A188896
- Expansion of Product_{k>=0} 1/(1 - x^(3*k+1))^2.at n=41A261616
- Magic sums of 4 X 4 magic squares composed of squares.at n=33A271580
- Magic sums of 4 X 4 magic squares composed of odd squares.at n=2A271582
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 803", based on the 5-celled von Neumann neighborhood.at n=23A273578
- Numbers that are not the difference of two binary palindromes (A006995).at n=38A290393
- Practical numbers z such that z^2 = x^2 + y^2 for some practical numbers x and y with gcd(x,y,z) = 4.at n=28A294112
- a(n) = n*(n + 1)*(7*n + 5)/6.at n=24A304993
- Number A(n,k) of tilings of a k X n rectangle using dominoes and trominoes (of any shape); square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=58A364457
- Number A(n,k) of tilings of a k X n rectangle using dominoes and trominoes (of any shape); square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=62A364457
- Number of tilings of a 3 X n rectangle using dominoes and trominoes (of any shape).at n=7A364460
- Number of tilings of a 7 X n rectangle using dominoes and trominoes (of any shape).at n=3A364617
- Records in A030000.at n=41A372044
- Number of graph minors in the (2n-1)-triangular snake graph.at n=6A378687