12463
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
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 13832
- Proper Divisor Sum (Aliquot Sum)
- 1369
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 11220
- Möbius Function
- 0
- Radical
- 1133
- 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
- 187
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 29 ones.at n=1A031797
- a(n) = Fibonacci(n) XOR Fibonacci(n+1).at n=20A051124
- Numbers n such that n | 11^n + 10^n + 1.at n=12A057294
- McKay-Thompson series of class 27b for the Monster group.at n=30A058601
- Number of paths of length n+2 originating at a non-corner edge of 4 X 4 Boggle board.at n=6A063001
- Trajectory of n under the Reverse and Add! operation carried out in base 4 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n.at n=36A075421
- Number of configurations of the 5 X 2 variant of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square in one of the corners.at n=22A090036
- a(n) = smallest k such that the base 4 Reverse and Add! trajectory of A075421(n) joins the trajectory of k.at n=36A091676
- Zero followed by partial sums of A008865.at n=33A145067
- Sequence with Hankel transform equal to 3^floor(n^2/2).at n=7A168492
- Numbers k such that there are 16 primes between 100*k and 100*k + 99.at n=8A186408
- Product between n-th prime and next perfect square.at n=26A229497
- Semiperimeters s of primitive Pythagorean triples (a, b, c) where a, b, c and s are not squarefree.at n=23A237620
- a(n) = Sum_{k=1..n} C(n-1,k-1) * S2(n,k) * 2^(n-k) for n>0, a(0)=1, where S2(n,k) = A048993(n,k) are Stirling numbers of the 2nd kind.at n=6A245059
- Numbers k such that k!! - 32 is prime.at n=10A262772
- Expansion of 1 / ((1-x)^2*(1-x^2)*(1-x^3)*...*(1-x^9)).at n=28A288344
- Numbers k such that 4*10^k - 71 is prime.at n=15A294917
- Number of regions in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and three equally spaced points along the diameter (a total of n+3 points). See Comments for precise definition.at n=21A333642
- Numbers k whose trajectory under the Reverse and Add! operation carried out in base 16 does not reach a palindrome and (presumably) does not join the trajectory of any term m < k.at n=12A344119
- Starts of runs of 3 consecutive integers whose exponent of least prime factor in their prime factorization is even.at n=22A365871