4303
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4648
- Proper Divisor Sum (Aliquot Sum)
- 345
- 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
- 3960
- Möbius Function
- 1
- Radical
- 4303
- 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
- 108
- 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
- Denominators of convergents to cube root of 3.at n=9A002353
- a(n) = floor(n(n+2)(2n+1)/8).at n=25A002717
- Coordination sequence T3 for Zeolite Code iRON.at n=46A009883
- Expansion of (x^3+2*x+1) / ((x-1)^4*(x^2+x+1)^2).at n=36A038391
- Numbers whose base-7 representation contains exactly three 5's.at n=32A043415
- Numbers k such that the string 0,3 occurs in the base 10 representation of k but not of k-1.at n=46A044335
- Numbers whose base-4 representation contains exactly three 0's and three 3's.at n=11A045079
- Squarefree nonprimes with property that the concatenation of the prime factors is a palindrome.at n=37A046448
- Semiprimes whose prime factors, when concatenated, yield a palindrome.at n=34A046451
- Numbers k that divide 8^k + 7^k + 6^k + 5^k.at n=8A057243
- Coordination sequence T6 for Zeolite Code MTF.at n=39A057309
- Coordination sequence T7 for Zeolite Code SFE.at n=43A057323
- a(n) = floor(e^n mod n^e).at n=36A066433
- a(1) = 4, a(n+1) is the largest composite number < 2a(n).at n=11A076995
- Constant term when a polynomial of degree n-1 is fitted to the first n primes.at n=13A082594
- a(n) = 1 + Sum(prime(i)*(2*i-1): 1<=i<=n).at n=12A083215
- a(0) = 2, a(n) is the smallest squarefree number > a(n-1) such that the sum a(n) + a(i) for all i = 1 to (n-1) is squarefree. Or, sum of any two terms is a squarefree number.at n=45A085902
- a(n) = A063416(n)/7.at n=38A088409
- Number of functional patterns on n elements; or digraphs with maximum outdegree 1, n arrows and every point connected to an arrow.at n=8A116950
- a(n) gives the A089840-index of the nonrecursive Catalan automorphism which is formed from A089840[n] by applying it to the left subtree of a binary tree and leaving the right-hand side subtree intact.at n=19A123694