6348
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 18
- Divisor Sum
- 15484
- Proper Divisor Sum (Aliquot Sum)
- 9136
- 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
- 2024
- Möbius Function
- 0
- Radical
- 138
- 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
- 80
- 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
- Pentagonal pyramidal numbers: a(n) = n^2*(n+1)/2.at n=23A002411
- Numbers that are the sum of 6 positive 6th powers.at n=44A003362
- Tetrahedral numbers written backwards.at n=36A004161
- Even pentagonal pyramidal numbers.at n=17A015224
- Least k such that first k terms of A022303 contain n more 2's than 1's.at n=5A025518
- a(n) = (1/2)*floor(n/2)*floor((n-1)/2)*floor((n-2)/2).at n=48A028724
- [ exp(3/13)*n! ].at n=6A030931
- Numbers having period-2 6-digitized sequences.at n=18A031357
- a(n) = 3*n^2.at n=46A033428
- Multiplicity of highest weight (or singular) vectors associated with character chi_101 of Monster module.at n=37A034489
- Number of labeled connected simplicial complexes with n nodes.at n=5A048143
- Numbers k such that phi(k) = phi(k - phi(k)).at n=33A051487
- Number of numbers whose cube root rounds to n.at n=46A058034
- Numbers k such that 2^k - 17 is prime.at n=29A059611
- Denominator of 1/36 - 1/n^2.at n=68A061046
- The terms of A073215 (sums of two powers of 23) divided by 2.at n=8A072822
- Least m > 1 such that m^n has m divisors, or 0 if no such m exists.at n=10A073049
- Sum of terms of n-th row of A077583.at n=22A077660
- Sum of terms of n-th row of A077661.at n=22A077663
- a(n) = (mu(n)+2)*n^2, where mu is the Moebius function (A008683).at n=45A080849