14441
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 16512
- Proper Divisor Sum (Aliquot Sum)
- 2071
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 12372
- Möbius Function
- 1
- Radical
- 14441
- 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
- 45
- 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
- no
- Odd
- yes
Appears in sequences
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VNI = VPI-9 Rb44K4[Zn24Si96O240].48H2O starting with a T5 atom.at n=13A019258
- Palindromic and divisible by 7.at n=39A045642
- Numbers n for which there are exactly five k such that n = k + reverse(k).at n=29A072429
- Smallest palindrome beginning with n and digit sum n, or 0 if no such number exists.at n=13A082217
- Smallest palindrome beginning with n and a digit sum of n at some stage.at n=13A082935
- Expansion of x*(11 + 22*x + 20*x^2)/((1-x)*(1+x)*(1 - 10*x^2)).at n=7A094620
- Expansion of x*(11+13*x+20*x^2) / ( (x-1)*(1+x)*(10*x^2-1) ).at n=7A094621
- Expansion of x*(11+20*x)/((1-x)*(1-10*x^2)).at n=7A094622
- a(n) = floor((Pi/sqrt(2))^n).at n=12A095214
- Palindromic numbers that contain the sum of their digits as a substring.at n=17A121939
- a(n) = 10*n^2 + 1.at n=38A158187
- a(n) = 40*n^2 + 1.at n=19A158602
- a(n) = n 4's sandwiched between two 1's.at n=3A205084
- Number of (w,x,y,z) with all terms in {1,...,n} and w<2x+y+z.at n=11A212145
- Number of 3 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=41A224039
- Numbers k for which the digital sum of k contains the same distinct digits as k itself.at n=30A249515
- T(n,k)=Number of length n+4 0..k arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=45A249656
- Number of length 1+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=9A249657
- Numbers k with the property that the square root of the product of the digits of k is equal to the sum of the square roots of its digits.at n=26A281745
- a(n) is the smallest k >= 0 such that 2^(2^n) + k*2^n + 1 is prime.at n=16A307535