4328
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
- 8
- Divisor Sum
- 8130
- Proper Divisor Sum (Aliquot Sum)
- 3802
- 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
- 2160
- Möbius Function
- 0
- Radical
- 1082
- Omega Function (Ω)
- 4
- 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
- 46
- 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
- Numbers k such that phi(k) + 9 | sigma(k + 9).at n=39A015788
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite CLO = Cloverite starting with a T3 atom.at n=5A019001
- Conjectured formula for irreducible 5-fold Euler sums of weight 2n+13.at n=31A019450
- Numbers k such that Fib(k) == 21 (mod k).at n=29A023179
- 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 31.at n=27A031529
- Conjecturally, a power of 2 written in base 3 cannot have this many 2's.at n=29A036463
- Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of two different symbols.at n=14A056381
- Number of primitive (aperiodic) step shifted (decimated) sequences using exactly two different symbols.at n=14A056386
- Numbers k such that 4*10^k + 3*R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=14A056707
- Smallest member of triple of consecutive numbers each of which is the sum of two different nonzero squares.at n=24A064715
- Smallest member of three consecutive numbers each of which is the sum of two nonzero squares (not necessarily different).at n=29A064716
- Number of distinct cuboids with integer sides <= n and cubefree volume.at n=38A070073
- Number of distinct cuboids with integer sides <= n and cubefree volume.at n=39A070073
- Lesser of three consecutive nonsquare integers each of which is the sum of two squares.at n=24A073412
- Sum of terms of n-th row of A077664.at n=45A077666
- Numbers k such that k, k+1 and k+2 are sums of 2 squares.at n=38A082982
- a(n) = floor((Sum_{r=1..n} r)*(Sum_{r=1..n} 1/r)).at n=43A090541
- Real part of absolute Gaussian perfect numbers, in order of increasing magnitude.at n=13A102531
- Even numbers n such that n^2 is an arithmetic number.at n=18A107924
- Partial sums of A011757.at n=12A109770