6327
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 9880
- Proper Divisor Sum (Aliquot Sum)
- 3553
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3888
- Möbius Function
- 0
- Radical
- 2109
- Omega Function (Ω)
- 4
- 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
- 54
- 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
- Orders of non-cyclic simple groups (divided by 4).at n=19A008976
- a(n) = floor( n*(n-1)*(n-2)/8 ).at n=38A011890
- Numbers k that divide s(k), where s(1)=1, s(j)=7*s(j-1)+j.at n=35A014854
- Numbers k that divide s(k), where s(1)=1, s(j)=9*s(j-1)+j.at n=30A014857
- Numbers k such that k divides s(k), where s(1)=1, s(j)= s(j-1) + j*7^(j-1).at n=19A014948
- a(n) = [ 2nd elementary symmetric function of {log(k)} ], k = 2,3,...,n.at n=38A025202
- 9 times the triangular numbers A000217.at n=37A027468
- a(n) = (2*n+1) * (4*n-1).at n=28A033566
- a(n) = floor(n^2/4)*(n/2).at n=37A034828
- Gaps of 8 in sequence A038593 (lower terms).at n=6A038655
- Numbers ending with '7' that are the difference of two positive cubes.at n=32A038862
- a(n) = (n+3)^3 - n^3.at n=24A038865
- Numbers whose base-5 representation contains exactly three 0's and two 2's.at n=28A045186
- a(n) = ceiling(n*(n+1)*(n+2)/8).at n=36A047866
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 9 skipped primes.at n=37A050776
- a(n) is both the sum of n+1 consecutive integers and the sum of the n immediately higher consecutive integers.at n=18A059270
- Sum of terms in n-th group in A075352.at n=37A075356
- Starting positions of strings of three 4's in the decimal expansion of Pi.at n=9A083615
- Real part of absolute Gaussian perfect numbers, in order of increasing magnitude.at n=24A102531
- The sum of a triangular array made from a negative 6 fold permutation product with shifts up and down of {2,6}.at n=29A105162