3518
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5280
- Proper Divisor Sum (Aliquot Sum)
- 1762
- 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
- 1758
- Möbius Function
- 1
- Radical
- 3518
- 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
- 149
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence T4 for Zeolite Code AET.at n=41A008010
- Coordination sequence T4 for Zeolite Code AFR.at n=45A008022
- Coordination sequence T3 for Zeolite Code -PAR.at n=42A009857
- Twelve iterations of Reverse and Add are needed to reach a palindrome.at n=16A015993
- Expansion of 1/((1-3x)*(1-6x)*(1-11x)).at n=3A017953
- 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 58.at n=12A031556
- Base-6 palindromes that start with 2.at n=39A043011
- Numbers having three 6's in base 8.at n=25A043447
- Numbers whose base-5 representation contains exactly two 0's and three 3's.at n=7A045198
- Becomes prime or 4 after exactly 7 iterations of f(x) = sum of prime factors of x.at n=41A048129
- Consider the Diophantine equation x^3 + y^3 = z^3 + 1 (1<x<y<z) or 'Fermat near misses'. Arrange solutions by increasing values of z (see A050791), and increasing values of y in case of ties. Sequence gives values of y.at n=10A050793
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 67 ).at n=19A063340
- When the numerator - denominator (A064169) in n-th harmonic number is prime.at n=47A064404
- Values of k for which A065358(k) is 0.at n=30A064940
- Numbers which need 12 'Reverse and Add' steps to reach a palindrome.at n=16A065217
- Smallest of four consecutive integers divisible by four consecutive primes respectively.at n=20A072555
- Let G(t) be the set of numbers between 2^(t-1) and 2^t-1, inclusive. There is a unique number a(t) in G(t) so that the denominator of the a(t)-th partial sum of the double harmonic series is divisible by smaller 2-powers than its neighbors.at n=10A079403
- The number of possible values of the squarefree kernel (A007947) shared by at least two solutions x to A056239(x) = n.at n=39A088318
- Decimal positions where Pi, E and Phi are the same.at n=40A090230
- Number of partitions of n with two sorts of part 1.at n=11A090764