12630
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 30384
- Proper Divisor Sum (Aliquot Sum)
- 17754
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3360
- Möbius Function
- 1
- Radical
- 12630
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 63
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Coefficients of the '3rd-order' mock theta function omega(q).at n=49A053253
- Number of collinear triples in a 3 X n rectangular grid.at n=30A057566
- a(n) = 60*n^2 + 180*n + 150.at n=12A069477
- Expansion of (1-4*x+3*x^2)/((1-2*x)*(1-4*x+x^2)).at n=8A087944
- Number of plasma partitions of 2n-1.at n=51A095913
- Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n loops and edges.at n=3A099681
- Third differences of fifth powers (A000584).at n=15A101096
- Number of 2-anisohedral polyhexes of order n.at n=18A120117
- Abs(square of n-th prime minus cube of n-1).at n=31A151911
- The number of permutations p of {1,...,n} satisfying |p(i)-p(i+1)| is in {4,5} for i from 1 to n-1.at n=38A174708
- Number of (n+2) X 3 binary arrays with each 3 X 3 subblock nonsingular.at n=3A185526
- Number of (n+2)X6 binary arrays with each 3X3 subblock nonsingular.at n=0A185529
- T(n,k)=Number of (n+2)X(k+2) binary arrays with each 3X3 subblock nonsingular.at n=6A185534
- T(n,k)=Number of (n+2)X(k+2) binary arrays with each 3X3 subblock nonsingular.at n=9A185534
- Triangle of coefficients of polynomials u(n,x) jointly generated with A207626; see the Formula section.at n=49A207625
- Number of 3-divided words of length n over a 3-letter alphabet.at n=8A210324
- Number of odd numbers k such that difference between halving and tripling steps in Collatz (3x+1) trajectory of k is n.at n=27A222753
- Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7.at n=29A258634
- The least common multiple of 1+n and 1+n^2.at n=29A281660
- p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S^5.at n=24A291218