5412
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 14112
- Proper Divisor Sum (Aliquot Sum)
- 8700
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1600
- Möbius Function
- 0
- Radical
- 2706
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 41
- 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
- Coordination sequence T1 for Moganite.at n=47A008258
- Pisot sequence T(7,10), a(n) = floor(a(n-1)^2/a(n-2)).at n=32A020752
- Numbers k such that k*(k+4) is a palindrome.at n=14A028555
- Number of bracelets (turnover necklaces) of n beads of 2 colors, 7 of them black.at n=16A032280
- Number of proper factorizations of the numbers with a record number of proper factorizations.at n=51A033834
- Records for sum of proper divisors function A001065.at n=49A034091
- a(n) = f(n,4) where f is given in A034261.at n=8A034264
- Numbers n such that lcm(sigma(n),phi(n)) is a perfect square.at n=36A043293
- Numbers having three 4's in base 8.at n=30A043439
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 8 skipped primes.at n=38A050775
- Expansion of g.f.: (1+4*x)/(1-x)^7.at n=7A051946
- a(n) = (11*n+5)*(n+4)*(n+3)*(n+2)*(n+1)/120.at n=7A056118
- Low-temperature partition function expansion for Kagome net (Potts model, q=3).at n=14A057401
- Numbers which are the sum of their proper divisors containing the digit 0.at n=22A059461
- Numbers k such that phi(x) = k has exactly 7 solutions.at n=34A060670
- Convolution of Fibonacci F(n+1), n>=0, with F(n+4), n>=0.at n=11A067332
- Harshad numbers which terminate in their digital sum.at n=31A070938
- Triangle of T1(n,m) = number of bracelets (necklaces that can be turned over) with m white beads and (2n+1-m) black ones, for 1<=m<=n.at n=61A078925
- a(n) = sigma[k](n) - phi(n)^k - d(n)^k for k=3.at n=42A079539
- Eighth column of (1,5)-Pascal triangle A096940.at n=6A096945