3134
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4704
- Proper Divisor Sum (Aliquot Sum)
- 1570
- 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
- 1566
- Möbius Function
- 1
- Radical
- 3134
- 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
- 61
- 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
- Base-5 Armstrong or narcissistic numbers, written in base 5.at n=10A010345
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [Si64O128].4R starting with a T4 atom.at n=11A019238
- Least sum of 3 distinct nonzero squares in exactly n ways.at n=21A025415
- Squarefree n such that Q(sqrt(n)) has class number 5.at n=21A029705
- 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 54.at n=17A031552
- Concatenation of n and n + 3.at n=30A032608
- Multiplicity of highest weight (or singular) vectors associated with character chi_49 of Monster module.at n=37A034437
- Numbers k such that the string 6,2 occurs in the base 9 representation of k but not of k-1.at n=42A044307
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n-1.at n=34A044366
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n+1.at n=34A044747
- Numbers whose base-4 representation contains exactly two 0's and three 3's.at n=31A045074
- Numbers whose base-5 representation contains exactly three 0's and two 1's.at n=6A045171
- Numbers whose base-5 representation contains exactly three 0's and one 4.at n=25A045215
- Concatenate prevprime(n) and n.at n=31A049851
- Trajectory of 13 under the '13x+1' map.at n=9A057684
- Number of right triangles of a given area required to form successively larger squares.at n=27A060626
- Squared radii of the spheres around (0,0,0) that contain record numbers of lattice points.at n=33A071609
- Primes of the form 6k+5 written in base 5.at n=40A072806
- Triangle of numbers {a(n,k), n >= 0, 0<=k<=n} defined by a(0,0)=1, a(1,0)=2, a(n,0)=A006318(n), a(n,n)=A006319(n), a(n+1,0)=a(n,0)+a(n,n), a(n,m+1)= Sum A006318(k)*a(n-k,0), k=0..m.at n=23A073150
- Diagonal of triangular spiral in A051682.at n=26A081267