3248
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 7440
- Proper Divisor Sum (Aliquot Sum)
- 4192
- 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
- 1344
- Möbius Function
- 0
- Radical
- 406
- Omega Function (Ω)
- 6
- 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
- 43
- 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
- Number of n-step self-avoiding walks on cubic lattice ending at point with x=1.at n=5A000760
- Number of primes <= product of first n primes, A002110(n).at n=6A000849
- Expansion of 1/((1-x)^2*(1-x^2)*(1-x^5)*(1-x^10)*(1-x^20)).at n=42A001305
- a(n) = n*(n+4)*(n+5)/6.at n=24A005586
- Maximal length of rook tour on an n X n board.at n=16A006071
- Positive even numbers that are not the sum of a pair of twin primes.at n=31A007534
- Twelve iterations of Reverse and Add are needed to reach a palindrome.at n=13A015993
- a(n) = a(n-1) + a(n-2) + 1 for n>1, a(0)=0, a(1)=7.at n=14A022312
- Expansion of Product_{m>=1} (1+m*q^m)^24.at n=3A022652
- Number of partitions of n into 8 unordered relatively prime parts.at n=32A023028
- Numbers that are the sum of 4 positive cubes in exactly 3 ways.at n=25A025405
- Numbers that are the sum of 4 positive cubes in 3 or more ways.at n=27A025407
- a(n) = (d(n)-r(n))/2, where d = A026066 and r is the periodic sequence with fundamental period (1,0,0,0).at n=22A026067
- Coordination sequence T4 for Zeolite Code CGS.at n=42A027368
- Number of symmetrically inequivalent coincidence rotations of index 2n-1 in lattice D_4.at n=24A031360
- Number of symmetrically inequivalent coincidence rotations of index n in lattice Z^4.at n=48A031361
- 8 times triangular numbers: a(n) = 4*n*(n+1).at n=28A033996
- Number of odd nonprimes < (2n+1)^2.at n=46A037040
- Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 2,3,0,1.at n=4A037746
- Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity).at n=11A039752