4908
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 11480
- Proper Divisor Sum (Aliquot Sum)
- 6572
- 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
- 1632
- Möbius Function
- 0
- Radical
- 2454
- 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
- 134
- 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
- a(n) = n^3 - floor( n/3 ).at n=17A002901
- McKay-Thompson series of class 6E for Monster (and, apart from signs, of class 12B).at n=32A007258
- Coordination sequence T4 for Zeolite Code VNI.at n=43A009910
- Number of f-vectors for simplicial complexes of dimension at most 4 on at most n-1 vertices.at n=7A011829
- a(n) = floor( n*(n-1)*(n-2)/8 ).at n=35A011890
- a(n) = n*(17*n + 1)/2.at n=24A022275
- Number of polyhexes of class PF2.at n=4A026298
- a(n) = Sum_{k=0..2*n-3} T(n,k) * T(n,k+3), with T given by A026584.at n=3A027285
- Sequence satisfies T^2(a)=a, where T is defined below.at n=51A027585
- Minimum sum of n distinct positive numbers, any n-1 of which sum to a square.at n=8A035305
- McKay-Thompson series of class 6E for the Monster group with a(0) = 1.at n=32A045488
- Differences between numbers k such that k and k+1 have the same sum of divisors.at n=19A054001
- Number of 6-ary Lyndon words of length n with trace 0 and subtrace 5 over Z_6.at n=7A074427
- Number of 6-ary Lyndon words of length n with trace 2 and subtrace 3 over Z_6.at n=7A074437
- Number of 7/3+-power-free words over the alphabet {0,1}.at n=30A082380
- Triangle read by rows: T(n,k) is the number of dissections of a convex n-gon by nonintersecting diagonals, having a k-gon over a fixed edge (base).at n=49A091370
- Row sums of A094307.at n=7A094308
- Number of partitions of n with at most two even parts.at n=35A096778
- Positive integers n such that n^19 + 1 is semiprime (A001358).at n=41A104657
- McKay-Thompson series of class 6E for the Monster group with a(0) = 3.at n=32A105559