12482
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 18963
- Proper Divisor Sum (Aliquot Sum)
- 6481
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6162
- Möbius Function
- 0
- Radical
- 158
- 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
- 50
- 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
- Numbers m such that phi(m) * sigma(m) + k^2 is not a square for any k.at n=34A015713
- Numbers k such that k^2 is palindromic in base 3.at n=43A029984
- Number of partitions of n with equal nonzero number of parts congruent to each of 2 and 3 (mod 4).at n=46A035551
- Numbers that are not squarefree and whose Euler totient function is squarefree.at n=25A049198
- First of three consecutive Ulam numbers (A002858) in arithmetic progression with difference 22.at n=5A068856
- If D[n] is divisor-set of n, then in set of 1+D only 2 primes occur:{2,3}; also n is not squarefree.at n=37A072607
- Numbers n such that n and n+2 are of the form p^2*q where p and q are distinct primes.at n=40A074173
- Maximum number of regions into which the plane can be divided using n (concave) quadrilaterals.at n=40A077591
- Numbers k such that the k-th difference between 2 successive primes equals the squarefree part of k.at n=22A078691
- a(n) = 2*prime(n)^2.at n=21A079704
- Triangle T(n,k), 0<=k<=n, defined by T(n,k) = 0 if k<0 or k>n, T(0,0) = 1, T(n,k) = T(n,k-1)+T(n-1,k-1)+T(n-1,k)+T(n-1,k+1).at n=29A122479
- Number of base 10 circular n-digit numbers with adjacent digits differing by 2 or less.at n=6A124852
- Numbers k such that A127483(k) = A127483(k+1) - 1 = A127483(k+2) - 2.at n=35A127485
- Inrepfigit (INverse REPetitive FIbonacci-like diGIT) numbers (or Htiek numbers).at n=12A128546
- 2*p^2, for p an odd prime.at n=20A143928
- Number of distinct values taken by 8^8^...^8 (with n 8's and parentheses inserted in all possible ways).at n=12A145548
- Number of n-leaf binary trees that do not contain (()((((()())())())())) as a subtree.at n=10A159772
- Numbers n such that n^7 is the sum of a positive fifth power and a square: n^7=x^5+y^2, with repetition.at n=33A175556
- Squares of odd primes and twice squares of odd primes.at n=48A227279
- Even numbers which are neither primes nor perfect powers and are coprime to the sum of their divisors.at n=39A248023