16214
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 27132
- Proper Divisor Sum (Aliquot Sum)
- 10918
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7260
- Möbius Function
- 0
- Radical
- 1474
- Omega Function (Ω)
- 4
- 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
- 66
- 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
- Product of n with sum of next n consecutive integers.at n=21A036659
- Fourth column (r=3) of FS(3) staircase array A062745.at n=43A062748
- Number of benzenoids with 21 hexagons with C_(2v) symmetry containing n carbon atoms.at n=13A121983
- Maximal length of rook tour on an n X n+2 board.at n=27A152133
- a(n) = 9*n^2 - 10*n + 3.at n=43A154262
- Fibonacci-type sequence based on bitwise inclusive-or: a(0) = 0, a(1) = 1 and a(n) = a(n-1) + (a(n-1) or a(n-2)).at n=14A182202
- Irregular triangle read by rows: T(n,k) is the number of permutations in S_n having k stretching pairs.at n=20A216120
- Number of primes of the form (x+1)^11 - x^11 less than 10^n.at n=49A221983
- Number of partitions p of n such that median(p) > mean(p).at n=49A240220
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 901", based on the 5-celled von Neumann neighborhood.at n=22A273744
- Numbers k, the smallest of at least 4 consecutive numbers x, for which phi(x) <= phi(x+1).at n=49A295865
- Partial sums of A299896.at n=32A299897
- Numbers k such that phi(k) < phi(k+1) < phi(k+2) < phi(k+3) where phi is the Euler totient function (A000010).at n=36A327880
- Numbers that are the sum of nine fourth powers in exactly ten ways.at n=29A345852
- Number of nonequivalent noncrossing cacti with n nodes up to rotation and reflection.at n=9A361243
- Expansion of Product_{k>=1} (1 + (2^k - 1) * x^k).at n=11A382978
- Number of integer compositions of n that are not the first sums of any composition.at n=14A391680