14626
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 22464
- Proper Divisor Sum (Aliquot Sum)
- 7838
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7140
- Möbius Function
- -1
- Radical
- 14626
- 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
- 120
- 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
- a(n) is twice the smallest k such that A051686(k) = prime(n).at n=43A051692
- Twice the positions in A051686 at which new primes appear in that sequence.at n=41A051861
- a(n) = binomial(n,0) - binomial(n,2) + binomial(n,4).at n=26A058923
- Numbers k such that A000295(k) = 2^k-k-1 is prime.at n=13A099439
- a(n) = (n^4 + 2n^3 + 5n^2 + 4)/4.at n=15A123350
- Numbers k such that binomial(3k, k) - 1 is prime.at n=25A125220
- a(n) = 11^n - 2^n + 1.at n=4A155622
- Number of binary strings of length n with no substrings equal to 0001 1010 or 1101.at n=16A164488
- Bras-Amorós number f_n for numerical semigroups of genus n.at n=9A210581
- Numerators of the continued fraction convergents of log_10((1+sqrt(5))/2).at n=12A217685
- Numbers whose second arithmetic derivative (A068346) is a primorial number (A002110) > 1.at n=20A368702