14941
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 15232
- Proper Divisor Sum (Aliquot Sum)
- 291
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 14652
- Möbius Function
- 1
- Radical
- 14941
- 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
- 40
- 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
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 88 ones.at n=12A031856
- Concatenation of squares in increasing order up to the n-th and then in decreasing order.at n=2A066623
- a(n) is the odd-length palindrome whose digits up to the center are those of n and whose center digit is equal to the digital root of the product of the factorial of n and the reverse of n.at n=13A082941
- Smallest palindromic number relatively prime to all the previous terms.at n=41A083137
- Composite numbers in A083137.at n=7A083138
- Concatenation of palindrome k and its 10's complement is prime.at n=37A108537
- a(1) = 1, then the rearrangement of odd palindromes such that every concatenation is a prime for n > 1.at n=25A113578
- Palindromes equal to the difference between a prime number and its index.at n=45A115889
- Palindromic composites such that some digit permutation is prime.at n=35A119378
- a(n) = (n^3 + 3*n - 2)/2.at n=30A132127
- a(n) = n*(n-th prime) + (n+1)*((n+1)-th prime).at n=40A152117
- Palindromic mountain numbers.at n=26A173070
- Smallest palindrome beginning with n-th prime.at n=34A185267
- Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=10A196479
- Number of 2 X 2 matrices having all terms in {1,...,n} and determinant >n.at n=13A211060
- Palindromes with no palindromic aliquot parts except 1.at n=14A257973
- Numbers n such that n, p=prime(n) and q=prime(p) have the same sum of digits.at n=25A261142
- Smallest k such that sum of first k primes has exactly n distinct prime divisors.at n=7A346382
- Number of integer compositions of n with all distinct first sums.at n=21A390567