9335
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 11208
- Proper Divisor Sum (Aliquot Sum)
- 1873
- 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
- 7464
- Möbius Function
- 1
- Radical
- 9335
- 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
- 34
- 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 6^k - 5 is prime.at n=20A059614
- Integer averages of two successive perfect powers (pp(n) + pp(n+1))/2.at n=24A075454
- Inverse binomial transform of squares of Catalan numbers.at n=6A087806
- Number of rectangles in a pyramid built with squares. The squares counted in A092498 are excluded.at n=14A134507
- Number of strings of n numbers x(i) in -8..8 with sums of x(i) and of x(i)*x(i+1) both zero.at n=5A183943
- Triangle enumerating certain two-line arrays of positive integers.at n=40A211788
- Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 7 array.at n=10A220031
- Irregular triangle in which row n has numbers k such that prime(n) divides A001008(k), the numerator of the k-th harmonic number.at n=42A229493
- Numbers that are midway between the nearest square and the nearest cube.at n=16A233075
- Indices of zeros in A268819.at n=49A269157
- Numbers of the form p+q-r = q+r-s where p < q < r < s are consecutive primes.at n=44A309720
- Number of non-isomorphic connected multiset partitions of weight n with empty intersection.at n=10A319790
- Numbers k such that k, 2*m +- 3 and 3*m +- 2 are all semiprimes.at n=43A382933
- a(n) = (7*n^2-5*n+2)/2.at n=52A389608