6282
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
- 13650
- Proper Divisor Sum (Aliquot Sum)
- 7368
- 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
- 2088
- Möbius Function
- 0
- Radical
- 2094
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 124
- 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 that are the sum of 3 positive 5th powers.at n=31A003348
- Numbers k such that 73*2^k+1 is prime.at n=17A032386
- Number of partitions satisfying cn(0,5) <= cn(2,5) + cn(3,5).at n=31A039840
- Numerators of continued fraction convergents to sqrt(808).at n=8A042558
- Numbers whose base-4 representation contains exactly two 0's and four 2's.at n=16A045051
- Let (u1,u2) be successive untouchable numbers such that phi(u1) = phi(u2); sequence gives values of u2.at n=18A048190
- Positions of the flipped bits (here they are always set from 0 to 1) in the sequence A059661.at n=26A059662
- Sum of the remainders when the n-th triangular number is divided by all smaller triangular numbers > 1.at n=44A072524
- Interprimes which are of the form s*prime, s=18.at n=18A075293
- 2*3*5*6*...*a(n) -+ 1 are primes, with a(n+1) > a(n).at n=31A087900
- Number of partitions of 2*n into minimal numbers.at n=34A099385
- Record gaps between twin primes.at n=34A113274
- a(n)=sqrt(A127856(n)).at n=6A127857
- Place n points on each of the three sides of a triangle, 3n points in all; a(n) = number of nondegenerate triangles that can be constructed using these points (plus the 3 original vertices) as vertices.at n=10A130748
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (0, -1, 0), (0, 1, -1), (1, 0, 0)}.at n=9A148569
- Row sums of exponential Riordan array [1+x*tan(x/2),x], A166353.at n=11A166354
- Inverse permutation to A190134.at n=38A190135
- Coefficient of x in the reduction by x^2->x+1 of the polynomial p(n,x) defined at Comments.at n=8A193047
- Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4.at n=12A197469
- Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and -1<=w+2x+3y<=1.at n=40A211623