2466
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
- 4
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 5382
- Proper Divisor Sum (Aliquot Sum)
- 2916
- 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
- 816
- Möbius Function
- 0
- Radical
- 822
- 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
- 133
- 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
- Noninscribable simplicial polyhedra with n nodes.at n=12A007037
- Number of regions in regular n-gon with all diagonals drawn.at n=17A007678
- Coordination sequence T3 for Zeolite Code AFS and BPH.at n=38A008025
- Coordination sequence T3 for Zeolite Code NON.at n=30A008214
- Coordination sequence T2 for Zeolite Code SGT.at n=31A008230
- Coordination sequence T2 for Zeolite Code TON.at n=31A008242
- If a, b in sequence, so is ab+5.at n=34A009304
- Coordination sequence T6 for Zeolite Code CON.at n=35A009873
- Pseudoprimes to base 73.at n=36A020201
- a(n) = least m such that if r and s in {1/1, 1/4, 1/7,..., 1/(3n-2)} satisfy r < s, then r < k/m < s for some integer k.at n=33A024822
- "AFJ" (ordered, size, labeled) transform of 1,2,3,4,...at n=6A032002
- Number of partitions in parts not of the form 19k, 19k+3 or 19k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 8 are greater than 1.at n=29A035972
- Number of partitions satisfying (cn(0,5) <= cn(2,5) = cn(3,5)).at n=37A036804
- Positive numbers having the same set of digits in base 4 and base 7.at n=39A037425
- Positive numbers having the same set of digits in base 8 and base 10.at n=13A037442
- Number of primes < e^n.at n=10A040014
- Denominators of continued fraction convergents to sqrt(355).at n=8A041673
- Numbers n such that string 3,4 occurs in the base 9 representation of n but not of n-1.at n=34A044282
- Numbers n such that string 4,0 occurs in the base 9 representation of n but not of n-1.at n=33A044287
- Numbers n such that string 6,6 occurs in the base 10 representation of n but not of n-1.at n=24A044398