9548
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 26
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 21504
- Proper Divisor Sum (Aliquot Sum)
- 11956
- 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
- 3600
- Möbius Function
- 0
- Radical
- 4774
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- 104
- 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(n) = floor(n*phi^15), where phi is the golden ratio, A001622.at n=7A004930
- a(n) = round(n*phi^15), where phi is the golden ratio, A001622.at n=7A004950
- Numbers whose base-6 representation is the juxtaposition of two identical strings.at n=43A020334
- a(n) = (d(n)-r(n))/2, where d = A026037 and r is the periodic sequence with fundamental period (1,0,0,1).at n=36A026038
- Number of partitions of n that do not contain 2 as a part.at n=39A027336
- Cycle of 3 steps possible for 'concatenate a(n) and nextprime(a(n)) is a prime'.at n=3A034593
- Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,1,2.at n=5A037531
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 2 skipped primes.at n=42A050769
- Denominators of column 2 of table described in A051714/A051715.at n=29A051719
- Numbers n such that phi(3n+1) = sigma(n).at n=46A067233
- Number of squares on infinite half chessboard at <=n knight moves from a fixed point on the edge.at n=37A098498
- a(n) = n*(5*n-3).at n=44A135706
- a(n) = n*A002088(n).at n=30A143270
- Number of planar n X n X n binary triangular grids with no more than 2 ones in any 2 X 2 X 2 subtriangle.at n=5A153522
- a(0)=0: a(n)=A002865(2*n)+A002865(2*n+1), n>=1.at n=19A182844
- Number of strings of numbers x(i=1..n) in 0..4 with sum i^2*x(i)^2 equal to n^2*16.at n=10A184235
- G.f.: A(x) = Sum_{n>=0} x^n/(1-x)^A038722(n), where A038722(n) = floor(sqrt(2*n)+1/2)^2 - n + 1.at n=13A192317
- Multiples of 682.at n=14A200860
- Sum of the divisors of n^3 - 1.at n=15A234860
- Analog of A097717 in base 5.at n=10A249599