9385
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 11268
- Proper Divisor Sum (Aliquot Sum)
- 1883
- 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
- 7504
- Möbius Function
- 1
- Radical
- 9385
- 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
- 83
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 61.at n=5A020400
- Numbers having three 7's in base 9.at n=35A043483
- Nearest integer to (Product(n^((1 + log(i))/i^2), {i, 1, n})).at n=42A062483
- Numbers that are sums of 2 or more consecutive squares in more than 1 way.at n=16A062681
- Numbers having exactly six anti-divisors.at n=36A066472
- a(n) = (prime(n)^2 + 1)/2.at n=31A066885
- Third row of Pascal-(1,5,1) array A081580.at n=23A081589
- Probability of obtaining a run of n consecutive cards of the same color in a deck of 52, numerators.at n=19A086439
- Number of convex polyominoes with a 3 X n+1 minimal bounding rectangle.at n=8A093119
- A Graham-Pollak-like sequence with cube root instead of square root.at n=34A100673
- a(n) = 8*n^2 + 4*n + 1.at n=34A102083
- Column k=2 sequence of array A103728.at n=32A103729
- Numbers whose anti-divisors sum to a prime.at n=42A109350
- Least k such that prime(n)^2 divides binomial(2k,k).at n=32A110494
- Number of n-node triangulations of the nonorientable surface N_3 in which every node has degree >= 4.at n=2A129050
- Numbers that are the sum of one or more consecutive squares in more than one way.at n=21A130052
- Numbers n such that n is divisible by (3*s(n)*s(n)+2), where s(n) = sum of digits of n.at n=32A134556
- Ulam's spiral (SSE spoke).at n=24A143839
- a(n) = 361*n - 1.at n=25A158308
- a(n) = 26*n^2 - 1.at n=18A158551