4166
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6252
- Proper Divisor Sum (Aliquot Sum)
- 2086
- 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
- 2082
- Möbius Function
- 1
- Radical
- 4166
- 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
- 126
- 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
- Expansion of 1/((1-x)^2*(1-x^2)*(1-x^5)*(1-x^10)*(1-x^20)).at n=45A001305
- Expansion of 1/((1+x)(1-x)^8).at n=8A001779
- Numbers that are the sum of 8 positive 6th powers.at n=40A003364
- Number of series-reduced labeled graphs with n nodes.at n=6A003514
- Numbers k such that k^64 + 1 is prime.at n=43A006316
- Series for second parallel moment of hexagonal lattice.at n=5A006741
- Coordination sequence T7 for Zeolite Code EUO.at n=40A008102
- Coordination sequence T2 for Zeolite Code TON.at n=40A008242
- Coordination sequence T2 for Coesite.at n=34A008268
- Coordination sequence T3 for Zeolite Code CZP.at n=42A019458
- Numbers k such that the continued fraction for sqrt(k) has period 54.at n=14A020393
- Number of 2's in n-th term of A007651.at n=33A022467
- A generalized difference set on the set of all integers (lambda = 1).at n=19A024431
- n written in fractional base 7/4.at n=41A024641
- a(n) = sum of the numbers between the two n's in A026366.at n=33A026369
- 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 64.at n=4A031562
- a(n) = floor(10^5/n).at n=23A033427
- Coordination sequence T11 for Zeolite Code STT.at n=43A038429
- Numbers whose base-8 representation has exactly 5 runs.at n=5A043627
- Numbers whose base-4 representation contains exactly three 0's and three 1's.at n=16A045031