4134
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 9072
- Proper Divisor Sum (Aliquot Sum)
- 4938
- 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
- 1248
- Möbius Function
- 1
- Radical
- 4134
- 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
- 157
- 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
- a(n) = floor(n*(n+2)*(2*n-1)/8).at n=24A007518
- Coordination sequence T2 for Zeolite Code NON.at n=39A008213
- Coordination sequence T4 for Zeolite Code NON.at n=39A008215
- Coordination sequence T4 for Zeolite Code SGT.at n=40A008232
- Coordination sequence T4 for Zeolite Code RSN.at n=42A009888
- Coordination sequence T3 for Zeolite Code ZON.at n=45A009921
- Convolution of natural numbers n >= 1 with Fibonacci numbers F(k), k >= 3.at n=12A033937
- Numbers k such that k-th and (k+1)-st term of A038593 differ by 3.at n=11A038634
- An intermediate sequence for nonisomorphic circulant self-complementary directed p^2-graphs, indexed by odd primes p.at n=5A038787
- Numbers whose base-16 representation has exactly 4 runs.at n=20A043677
- Numbers n such that n | 7^n + 5^n + 3^n +1.at n=17A057830
- McKay-Thompson series of class 28A for Monster.at n=26A058606
- Positive numbers whose product of digits is four times their sum.at n=35A062036
- Record entries in A065191.at n=36A065192
- Numbers that define integer Heronian triangles [a(n), prime(a(n)), A068968(n)] with area A068969(n).at n=26A068967
- Numbers k such that Sum_{d divides k} sigma(d)/phi(d) is an integer.at n=20A068991
- A modified Fibonacci sequence controlled by a toggle switch. The toggle switch (initial state of 2) flips between 2 and 3 after each reduction.at n=40A096016
- Numbers n such that n divides the denominator of 2n-th Bernoulli number.at n=22A106741
- Numbers n such that A086793(n)=20.at n=31A119396
- Multiples of 13 containing a 13 in their decimal representation.at n=15A121033