9386
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
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 16002
- Proper Divisor Sum (Aliquot Sum)
- 6616
- 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
- 4104
- Möbius Function
- 0
- Radical
- 494
- Omega Function (Ω)
- 4
- 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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 122
- Smith Number
- yes
- 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
- Numerators of continued fraction convergents to sqrt(301).at n=7A041566
- Numbers having four 2's in base 8.at n=17A043432
- Numbers whose base-2 representation has exactly 12 runs.at n=14A043579
- Smaller of Smith brothers.at n=6A050219
- Number of 4 X 4 stochastic matrices under row and column permutations.at n=10A052280
- Numbers n such that 1n1, 3n3, 7n7 and 9n9 are all primes.at n=23A059677
- Numbers n such that sum of digits of n equals the squarefree part of n.at n=48A070274
- If D[n] is divisor-set of n, then in set of 1+D only 2 primes occur:{2,3}; also n is not squarefree.at n=27A072607
- Numbers which are the sum of two positive cubes and divisible by 19.at n=26A102619
- Limit of reversed rows of triangle A126347, in which row sums equal Bell numbers (A000110).at n=21A126348
- a(n) is the number of integers x that can be written x = (2^c(1) - 2^c(2) - 3*2^c(3) - 3^2*2^c(4) - ... - 3^(m-2)*2^c(m) - 3^(m-1)) / 3^m for integers c(1), c(2), ..., c(m) such that n = c(1) > c(2) > ... > c(m) > 0 and c(1) - c(2) != 2 if m >= 2.at n=37A131450
- a(n) = (2*n^2)^(-1)*Sum_{d|n} (-1)^(n+d)*moebius(n/d)*binomial(2*d,d).at n=11A131868
- Numbers k such that k and k^2 use only the digits 0, 3, 6, 8 and 9.at n=27A136945
- Number of lines through at least 2 points of a 5 X n grid of points.at n=41A160845
- Multiples of 19 whose reversal + 1 is also a multiple of 19.at n=29A166392
- Number of ways to place 5 nonattacking knights on an n X n board.at n=4A172136
- Number of ways to place 5 nonattacking knights on a 5 X n board.at n=4A172214
- Partial sums of A106116.at n=42A173112
- Second edge diagonal of table A176577. (The first edge diagonal is A099627).at n=32A176575
- Number of permutations of 1..n with the sum of squared adjacent differences <= n*(n-1)/2.at n=8A180068