3484
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 6664
- Proper Divisor Sum (Aliquot Sum)
- 3180
- 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
- 1584
- Möbius Function
- 0
- Radical
- 1742
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 3
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
- 180
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Powers of rooted tree enumerator.at n=12A000439
- Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes.at n=22A007811
- Coordination sequence T1 for Zeolite Code DAC.at n=37A008067
- Coordination sequence T1 for Zeolite Code LAU.at n=42A008124
- Coordination sequence T3 for Zeolite Code LIO.at n=41A008131
- Coordination sequence T4 for Zeolite Code LTN.at n=41A008143
- Coordination sequence T3 for Zeolite Code MOR.at n=38A008184
- Pseudoprimes to base 29.at n=26A020157
- a(n) = T(4n,n), where T is the array in A026300.at n=4A026304
- Multiples of 4 that are the difference of two positive cubes.at n=41A038849
- Numbers ending with '4' that are the difference of two positive cubes.at n=10A038859
- (n+4)^3 - n^3.at n=14A038866
- Numbers k such that string '84' occurs in the base 10 representation of k but not of k-1.at n=37A044416
- Numbers n such that string 8,4 occurs in the base 10 representation of n but not of n+1.at n=37A044797
- Discriminants of real quadratic number fields K with class number 2 such that the Hilbert class field of K is K(sqrt(13)).at n=48A052478
- Let Py(n)=A000330(n)=n-th square pyramidal number. Consider all integer triples (i,j,k), j >= k>0, with Py(i)=Py(j)+Py(k), ordered by increasing i; sequence gives k values.at n=34A053721
- Number of ways of numbering the faces of a cube with nonnegative integers so that the sum of the 6 numbers is n.at n=22A054473
- Coordination sequence T5 for Zeolite Code SFE.at n=39A057321
- Numbers n such that n*M127 + 1 is prime, where M127 = 2^127 - 1.at n=41A057440
- a(n) = p(0) + p(1) + ... + p(n) - n - 1, where p = partition numbers, A000041.at n=21A058682