4234
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 6660
- Proper Divisor Sum (Aliquot Sum)
- 2426
- 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
- 2016
- Möbius Function
- -1
- Radical
- 4234
- Omega Function (Ω)
- 3
- 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
- 33
- 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
- Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0).at n=46A005893
- Coordination sequence for body-centered tetragonal lattice.at n=23A008527
- Coordination sequence T2 for Zeolite Code AHT.at n=44A009867
- a(n) = floor( n*(n-1)*(n-2)/14 ).at n=40A011896
- Numbers k such that the continued fraction for sqrt(k) has period 25.at n=14A020364
- Expansion of Product_{m>=1} (1-m*q^m)^29.at n=4A022689
- Positive numbers having the same set of digits in base 3 and base 8.at n=43A037420
- Numbers whose base-4 representation contains exactly three 0's and three 2's.at n=11A045055
- Numbers whose base-5 representation contains exactly three 1's and two 4's.at n=32A045261
- T(n,n+2), array T given by A047020.at n=7A047027
- Numbers n such that 287*2^n-1 is prime.at n=16A050902
- Coefficients of a polynomial used in calculation of A055914.at n=7A055917
- McKay-Thompson series of class 28D for Monster.at n=26A058609
- Harmonic mean of digits is 3.at n=34A062181
- a(n) = sigma_2(n) + phi(n) * sigma(n).at n=45A072779
- a(n) = (2*n-1)^2 + (2*n+1)^2.at n=23A108100
- Row sums of A110537 viewed as a number triangle.at n=13A110538
- Consider the array T(n, m) where the n-th row is the sequence of integer coefficients of A(x), where 1<=a(n)<=n, such that A(x)^(1/n) consists entirely of integer coefficients and where m is the (m+1)-th coefficient. This is the row sum of A to the first coefficient of one.at n=15A112285
- Fibonacci(p-J(p,5)) mod p^2, where p is the n-th prime and J is the Jacobi symbol.at n=20A113650
- Numbers n such that n^24 + 1 = p*q with p,q distinct primes.at n=8A119982