16924
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 29624
- Proper Divisor Sum (Aliquot Sum)
- 12700
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8460
- Möbius Function
- 0
- Radical
- 8462
- Omega Function (Ω)
- 3
- 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
- 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 free planar polyenoids with n nodes and symmetry point group C_s.at n=12A000941
- Number of partitions of n with at least 1 odd and 1 even part.at n=36A006477
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 68 ones.at n=27A031836
- Number of subsets of the first n numbers having a common divisor greater than 1.at n=27A109511
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (1, -1, 1), (1, 0, -1), (1, 0, 1), (1, 1, 1)}.at n=7A150992
- Number of permutations of 2 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 4.at n=8A190825
- Number of permutations of n copies of 1..8 introduced in order 1..8 with no element equal to another within a distance of 4.at n=1A190935
- Triangle read by rows: T(n,k) = number of linear chord diagrams with n chords such that every chord has length at least k (1 <= k <= n).at n=32A293157
- Number of cyclic permutations of length n avoiding the pattern 123.at n=12A309504
- Total number of square parts in all compositions of n.at n=13A309535
- Unbranched catafusenes, mirror-symmetrical.at n=20A323931
- Triangle read by rows: T(n,w) is the number of n-step self avoiding walks on a 3D cubic lattice confined between two infinite planes a distance 2w apart where the walk starts at the middle point between the planes.at n=19A338125
- Tetranacci sequence beginning with 3, 7, 12, 24.at n=13A356807
- Fixed points in A376198.at n=49A376201