15064
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 32400
- Proper Divisor Sum (Aliquot Sum)
- 17336
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6432
- Möbius Function
- 0
- Radical
- 3766
- Omega Function (Ω)
- 5
- 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
- 89
- 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 aperiodic bracelets (turn over necklaces) with n beads of 4 colors.at n=8A032295
- List of codewords in binary lexicode with Hamming distance 6 written as decimal numbers.at n=24A075934
- Numbers n such that sigma(n) and sigma(sigma(n)) are both perfect squares.at n=10A134263
- Coefficients of the polynomial giving the n-th diagonal of A137743 * n!, read as an upper right triangle.at n=23A137738
- The sum of the principal diagonals of an n X n spiral.at n=28A137930
- Sum of the principal diagonals of a 2n X 2n square spiral.at n=14A137931
- Relative offsets from the middle point of each row of A233271 & A218616 to the first point where the former exceeds the latter, which apart of case a(3)=-1 is always left of or at the middle point.at n=23A233274
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 197", based on the 5-celled von Neumann neighborhood.at n=27A270718
- Numbers k such that (2*10^k + 457)/9 is prime.at n=21A281276
- The number of trees with 4 nodes labeled by positive integers, where each tree's label sum is n.at n=49A301739
- Sum of the odd parts in the partitions of n into 8 parts.at n=32A309629
- Sequence lists numbers k > 1 such that k^4 == d(k) (mod sigma(k)), where d = A000005 and sigma = A000203.at n=14A323251
- Triangle read by rows: T(n,k) is the number of strict multiset partitions of normal multisets of size n into k blocks, where a multiset is normal if it spans an initial interval of positive integers.at n=32A330787
- Area of the convex hull around R5 dragon curve expansion level n.at n=6A349008
- G.f.: 1/Product_{k>=1} (1 - x^(2*k^2)) * (1 - x^k).at n=29A385011
- Number of tetrahedra in the n X n black bishop graph.at n=16A391766