14211
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 9
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 20540
- Proper Divisor Sum (Aliquot Sum)
- 6329
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9468
- Möbius Function
- 0
- Radical
- 4737
- Omega Function (Ω)
- 3
- 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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 58
- 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
- no
- Odd
- yes
Appears in sequences
- Coordination sequence for sigma-CrFe, Position Xc.at n=30A009961
- Sum of aliquot factors (divisors excluding the number itself) of 10^n.at n=4A046914
- Numbers k such that x^k + x^2 + 1 is irreducible over GF(2).at n=14A057460
- Numbers whose product of decimal digits equals its sum of binary digits.at n=26A064003
- Numbers k such that 2^k - 19 is prime.at n=21A096819
- Minimal value of sum(p(i)p(i+1),i=1..n), where p(n+1)=p(1), as p ranges over all permutations of {1,2,...,n}.at n=42A110611
- a(1)=1, a(n)=a(n-1)+n^2 if n odd, a(n)=a(n-1)+ n^0 if n is even.at n=42A140148
- Composite numbers whose product of digits is 8.at n=42A201056
- Numbers n such that A002496(n) mod A002496(n-1) is a perfect square.at n=37A247592
- Number of partitions of n where each part i is marked with a word of length i over a nonary alphabet whose letters appear in alphabetical order.at n=4A261743
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 403", based on the 5-celled von Neumann neighborhood.at n=27A271809
- Isolated deficient numbers that are divisible by 3.at n=22A273255
- Numbers k such that 2*10^k - 27 is prime.at n=18A282571
- Number of cyclic compositions (necklaces of positive integers) summing to n that have only one part or whose consecutive parts (including the last with first) are indivisible.at n=33A318729
- Numbers that are the sum of seven fourth powers in five or more ways.at n=30A345571
- Numbers that are the sum of seven fourth powers in exactly five ways.at n=29A345827
- a(n) = n! * Sum_{k=0..floor(n/3)} (n/3)^k * binomial(n-2*k,k)/(n-2*k)!.at n=7A362300
- a(n) = number of partitions p of n such that the greatest multiplicity of the parts of p is a part of p.at n=40A365613