11854
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 17784
- Proper Divisor Sum (Aliquot Sum)
- 5930
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5926
- Möbius Function
- 1
- Radical
- 11854
- 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
- 73
- 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
- Number of permutations of length n within distance 2 of a fixed permutation.at n=12A002524
- a(n) = T(2n,n), T given by A026769.at n=7A026770
- a(n) = T(n, floor(n/2)), T given by A026769.at n=14A026775
- Numerators of continued fraction convergents to sqrt(948).at n=5A042834
- Numbers k such that A001414(k) is a square and sets a new record for squares.at n=26A064463
- Ulam's spiral (SSE spoke).at n=27A143839
- Numbers k such that |2^k - 57| is prime.at n=40A165778
- Number of n X 2 array permutations with each element moving zero or one space diagonally, horizontally or vertically.at n=5A189305
- Number of nX6 array permutations with each element moving zero or one space diagonally, horizontally or vertically.at n=1A189309
- T(n,k)=Number of nXk array permutations with each element moving zero or one space diagonally, horizontally or vertically.at n=22A189312
- T(n,k)=Number of nXk array permutations with each element moving zero or one space diagonally, horizontally or vertically.at n=26A189312
- Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four or six distinct values for every i,j,k<=n.at n=5A211729
- Triangle read by rows: T(n,k) is the number of ascent sequences of length n with last zero at position k-1.at n=47A218579
- Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=17A254905
- Number of (n+1) X (3+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0101.at n=11A259217
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood.at n=17A279942
- Number of length-n binary words containing no antisquares except 01 and 10.at n=21A307732
- Number of subsets S of {A007931(1), A007931(2), ..., A007931(n)} with the property that no element of S is a substring of any other.at n=25A363145
- Consecutive states of the linear congruential pseudo-random number generator (1277*s + 24749) mod 117128 when started at s=1.at n=5A385357