1248
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 3528
- Proper Divisor Sum (Aliquot Sum)
- 2280
- 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
- 384
- Möbius Function
- 0
- Radical
- 78
- Omega Function (Ω)
- 7
- 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
- 39
- 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-celled free polyominoes without holes.at n=9A000104
- Expansion of Product_{k>=1} (1 - x^k)^16.at n=5A000739
- Numbers that are the sum of 7 positive 5th powers.at n=38A003352
- Numbers that are the sum of 8 positive 5th powers.at n=43A003353
- a(n) = floor(n*phi^7), where phi is the golden ratio, A001622.at n=43A004922
- a(n) = round(n*phi^7), where phi is the golden ratio, A001622.at n=43A004942
- Representation degeneracies for Ramond strings.at n=11A005305
- Theta series of D_4 lattice with respect to deep hole.at n=49A005879
- Generalized Fibonacci numbers A_{n,2}.at n=24A006207
- Minimum diameter of an integral set of n points in the plane, not all on a line.at n=45A007285
- Frequency of n-th largest distance in N times N times N grid, N > n.at n=47A007544
- Coordination sequence T1 for Zeolite Code AFS.at n=27A008023
- Coordination sequence T4 for Zeolite Code BOG.at n=25A008052
- Coordination sequence T3 for Zeolite Code HEU.at n=23A008118
- Number of partitions of n into parts >= 4.at n=44A008484
- Coordination sequence T3 for Zeolite Code -CLO.at n=31A009852
- Theta series of lattice Kappa_7.at n=6A015236
- phi(n) + 8 | sigma(n).at n=45A015799
- Expansion of g.f. 1/((1-2*x)*(1-10*x)).at n=3A016134
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CON = CIT-1 H2[B2Si54O112] starting with a T3 atom.at n=10A019099