4130
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 8640
- Proper Divisor Sum (Aliquot Sum)
- 4510
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1392
- Möbius Function
- 1
- Radical
- 4130
- 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
- 126
- 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
- Dying rabbits: a(0) = 1; for 1 <= n <= 12, a(n) = Fibonacci(n); for n >= 13, a(n) = a(n-1) + a(n-2) - a(n-13).at n=19A000044
- Number of Hamiltonian rooted triangulations with n internal nodes and 5 external nodes.at n=3A005979
- Primitive pseudoperfect numbers.at n=57A006036
- Coordination sequence T1 for Zeolite Code MFI.at n=41A008161
- Coordination sequence T7 for Zeolite Code PAU.at n=47A008225
- Numbers k such that sigma(k) = sigma(k+6).at n=17A015866
- Numbers with exactly 6 2's in their ternary expansion.at n=17A023704
- Expansion of 1/((1-3x)(1-5x)(1-6x)(1-9x)).at n=3A028055
- Numbers whose base-4 representation has 4 more 0's than 3's.at n=34A031465
- Numbers having, in base 16, (sum of even run lengths)=(sum of odd run lengths).at n=16A044887
- Numbers whose base-4 representation contains exactly four 0's and one 1.at n=25A045034
- Numbers whose base-4 representation contains exactly four 0's and two 2's.at n=6A045059
- Numbers whose base-4 representation contains exactly four 0's and no 3's.at n=31A045081
- Normalized extreme values for "3x+1" trees of depth n.at n=26A045476
- Partial sums of A045954.at n=43A045964
- Sum of transposition distances (divided by 2) present in the permutation produced by inverses of 1..(p-1) computed in Zp, where p is n-th prime.at n=38A051864
- Non-balanced numbers in A015765.at n=18A074868
- Final terms of rows in A077341.at n=40A077343
- Expansion of Molien series for a certain 4-D group of order 48.at n=41A078411
- Partial sums of A109890.at n=43A109735