9110
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 16416
- Proper Divisor Sum (Aliquot Sum)
- 7306
- 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
- 3640
- Möbius Function
- -1
- Radical
- 9110
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 60
- 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
- Numbers in which all pairs of consecutive base-5 digits differ by 2.at n=40A033083
- Denominators of continued fraction convergents to sqrt(279).at n=10A041525
- Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={3}.at n=15A079968
- Slowest increasing sequence where the absolute difference between the last digit of a(n) and the first digit of a(n+1) equals 9.at n=23A101243
- Matrix cube of triangle A105540 and, in this flattened form as read by rows, also equals column 2 of A105540.at n=55A105545
- Number of partitions of n such that the largest part is a multiple of the smallest part.at n=32A117086
- Numbers k such that k and k^2 use only the digits 0, 1, 2, 8 and 9.at n=39A136835
- Binomial transform of [1, 3, 3, 1, 1, -1, 1, -1, 1, ...].at n=30A140226
- Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,1 3,2 3,3 4,2 4,3 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155432
- a(n) = (2*n^3 + 5*n^2 + 11*n)/2.at n=19A162263
- Number of nX7 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..1 nX7 array.at n=2A218896
- T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..1 nXk array.at n=38A218897
- Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..1 3Xn array.at n=6A218899
- Number T(n, k) of ways to place k points on an n X n X n triangular grid so that no pair of them has distance sqrt(3). Triangle read by rows.at n=40A244500
- Number of ways to place 4 points on an n X n X n triangular grid so that no pair of them has distance sqrt(3).at n=3A244502
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 657", based on the 5-celled von Neumann neighborhood.at n=18A273336
- Number of nonequivalent ways to place 6 points on an n X n square grid so that no more than 2 points are on a vertical or horizontal straight line.at n=4A279450
- Triangle read by rows: T(n, k) is the number of nonequivalent ways to place k points on an n X n square grid so that no more than 2 points are on a vertical or horizontal straight line.at n=29A279453
- Runs of consecutive integers in A270877, which is produced by a decaying trapezoidal modification of the sieve of Eratosthenes.at n=40A281256
- Numbers k such that 7*10^k - 47 is prime.at n=21A282457