14550
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 36456
- Proper Divisor Sum (Aliquot Sum)
- 21906
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3840
- Möbius Function
- 0
- Radical
- 2910
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 133
- 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
- Number of partitions of [n] where the first k elements are marked (0 <= k <= n-1) and at least k blocks contain their own index.at n=7A005490
- Number of necklaces with 8 black beads and n-8 white beads.at n=14A032193
- Numbers k such that 153*2^k-1 is prime.at n=36A050618
- A sequence related to numeric partitions and Fermat Coefficients.at n=14A059251
- Numbers k such that k-1, k+1 and k^2+1 are prime numbers.at n=30A070155
- Sum of terms in periodic part of continued fraction expansion of square root of 1+2^n.at n=22A077628
- Numbers m such that m^4-1 has no divisors d with 1 < d < m-1.at n=31A129293
- Averages of twin primes such that the sum of the lower, average and upper parts of the twin primes are averages of other twin primes.at n=9A132929
- Expansion of psi(-q^3) / psi(-q)^3 in powers of q where psi() is a Ramanujan theta function.at n=18A132974
- Expansion of psi(q^3) / psi(q)^3 in powers of q where psi() is a Ramanujan theta function.at n=18A132979
- Numbers divisible by the sum of 5th powers of their digits.at n=36A169666
- Sum over all partitions of n of the LCM of the parts.at n=19A181844
- Averages q of twin prime pairs, such that q concatenated to q is also the average of a twin prime pair.at n=20A235109
- Expansion of q^(-1) * psi(q) / psi(q^3)^3 in powers of q where psi() is a Ramanujan theta function.at n=55A258093
- Numbers k such that k is the average of four consecutive primes k-7, k-1, k+1 and k+7.at n=19A258879
- Expansion of phi(-q^3) / phi(-q)^3 in powers of q where phi() is a Ramanujan theta function.at n=9A259662
- Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus two, zero or minus 1.at n=9A269620
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 497", based on the 5-celled von Neumann neighborhood.at n=26A272558
- Numbers k divisible by A101337(k) (narcissistic function).at n=56A306361
- Number of squarefree parts in the partitions of n into 6 parts.at n=45A309458