14459
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 15240
- Proper Divisor Sum (Aliquot Sum)
- 781
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13680
- Möbius Function
- 1
- Radical
- 14459
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 133
- 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
- a(n) = floor(n^3 / e).at n=34A032636
- Number of symmetric n X 3 crossword puzzle grids.at n=11A034185
- Number of partitions of n into parts not of the form 13k, 13k+5 or 13k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 5 are greater than 1.at n=39A035953
- Sum of consecutive nonsquares.at n=19A048395
- Numbers k such that k*2^m-1 are composites for all exponents m in the range 0<=m<=k.at n=32A061154
- Number of irregular primes less than e^n.at n=12A105457
- Positive integers of the form (18*m^2+1)/11.at n=17A113338
- Row sums of the triangle in A199332.at n=37A199771
- Number of 0..n arrays x(0..2) of 3 elements with each no smaller than the sum of its previous elements modulo (n+1).at n=36A200252
- Number of (w,x,y,z) with all terms in {1,...,n} and w + x = 2y + 2z.at n=39A212561
- Least number m such that d_1^j + d_2^j + ... + d_k^j is prime for j = 1, 2, 3, ... n and is composite for j = n+1, where d_1, d_2, ... d_k are the digits of m.at n=4A245358
- Number of positive solutions to x^2+y^2+z^2 <= n^2.at n=31A253663
- Numbers k such that 6*17^k + 1 is prime.at n=15A332763
- Number of unlabeled initially connected digraphs with n arcs.at n=8A350907
- Sum of the n-th maximal run of adjacent (increasing by one at a time) non-perfect-powers.at n=25A375705
- Numerators of the partial sums of the reciprocals of the number of abelian groups function (A000688).at n=42A379359
- Triangle read by rows: T(n,0) = T(n,n) = 0 and T(n,k) = T(n, k-1) + T(n-1, k-1) + T(n-2, k-1) + k for 0 < k < n.at n=76A391467