12308
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
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 22932
- Proper Divisor Sum (Aliquot Sum)
- 10624
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5760
- Möbius Function
- 0
- Radical
- 6154
- 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
- 37
- 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
- Left diagonal of partition triangle A047812.at n=32A007042
- a(n) = n*(n+1)*(n+2)*(n^2+7*n+32)/120.at n=14A051747
- Even elements of A082931.at n=40A082933
- The number of possible values of the squarefree kernel (A007947) shared by at least two solutions x to A056239(x) = n.at n=48A088318
- Number of squares on infinite half chessboard at <=n knight moves from a fixed point on the edge.at n=42A098498
- a(n) = 3*a(n-1) - 4*a(n-2) + 6*a(n-3) - 4*a(n-4), with initial terms 0,1,2,4.at n=14A136427
- a(n) = A165966(n)/12.at n=19A166119
- Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 259", based on the 5-celled von Neumann neighborhood.at n=55A271054
- Number of partitions of n which are not the partitions into (one or more) consecutive parts.at n=33A282467
- Partial sums of A299274.at n=26A299275
- Number of integer partitions of n with 2 distinct parts or at least 3 parts.at n=34A325269
- Sum of the largest parts of the partitions of n into 9 squarefree parts.at n=42A326532
- Triangle read by rows: T(n,m) (n >= m >= 1) = number of regions (or cells) formed by drawing the line segments connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares.at n=33A331452
- Shortest distance from curve start to end along the segments of dragon curve expansion level n, and which is the diameter of the curve as a graph.at n=24A343949
- For 1<=x<=n, 1<=y<=n with gcd(x,y)=1, write 1 = gcd(x,y) = u*x+v*y with u,v minimal; a(n) = m^2*s, where s is the population variance of the values of u+v and m is the number of such values.at n=10A345725
- Number of ways to write n as an ordered sum of eight positive Fibonacci numbers (with a single type of 1).at n=14A357716
- Number of integer partitions of n whose product of parts is not n.at n=34A379736
- Rank of the partition of n formed by the terms of its binary expansion from largest to smallest.at n=33A380207