4803
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6408
- Proper Divisor Sum (Aliquot Sum)
- 1605
- 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
- 3200
- Möbius Function
- 1
- Radical
- 4803
- 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
- 165
- 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
- Coordination sequence T7 for Zeolite Code EUO.at n=43A008102
- Coordination sequence T4 for Zeolite Code RSN.at n=45A009888
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 69.at n=5A031567
- "EFK" (unordered, size, unlabeled) transform of 2,1,1,1,...at n=49A032303
- Number of partitions of n such that cn(0,5) = cn(1,5) <= cn(3,5) <= cn(2,5) = cn(4,5).at n=65A036864
- Numbers whose base-7 representation contains exactly three 0's.at n=30A043395
- Numbers n such that n^2 - 1 is expressible as the sum of two nonzero squares in exactly one way.at n=22A050797
- Numbers k such that k^6 == 1 (mod 7^4).at n=12A056092
- Number of periodic palindromic structures of length n using exactly four different symbols.at n=15A056510
- Triangle T(n,k) giving number of fixed 3 X k polyominoes with n cells (n >= 3, 1<=k<=n-2).at n=42A059679
- Composite n such that (n-1)*phi(n) is a perfect square.at n=15A069953
- Expansion of (1-x)/(1-x^2-2*x^3).at n=25A078026
- a(n) = sum of the first n lower twin primes.at n=24A086167
- Number of fib001 primes (A095086) in range ]2^n,2^(n+1)].at n=17A095066
- Number of irregular primes less than 2^n.at n=16A105456
- Triangle, read by rows, where the g.f. A(x,y) satisfies the equation: A(x,y) = 1/(1-x*y) + x*A(x,y) + x^2*A(x,y)^2.at n=69A105632
- Number of series-reduced labeled trees with n nodes.at n=7A108919
- Sum of the lesser of twin primes <= prime(10^n).at n=1A110900
- Semiprimes of the form 2*n + 1, where n is a square.at n=19A111351
- Number of 10-almost primes k such that 2^n < k <= 2^(n+1).at n=20A120041