2416
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 4712
- Proper Divisor Sum (Aliquot Sum)
- 2296
- 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
- 1200
- Möbius Function
- 0
- Radical
- 302
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 2
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
- 19
- 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
- Eulerian numbers (Euler's triangle: column k=4 of A008292, column k=3 of A173018).at n=3A000498
- Worst cases for Pierce expansions (numerators).at n=21A006537
- Maximal Eulerian numbers.at n=6A006551
- Coordination sequence T5 for Zeolite Code AET.at n=34A008011
- Coordination sequence T3 for Zeolite Code AFT.at n=37A008028
- Coordination sequence T2 for Zeolite Code APC.at n=34A008033
- Coordination sequence T2 for Zeolite Code BOG.at n=35A008050
- Coordination sequence T2 for Scapolite.at n=31A008263
- Triangle of Eulerian numbers T(n,k) (n >= 1, 1 <= k <= n) read by rows.at n=24A008292
- Numbers in the triangle of Eulerian numbers (A008292) that are not 1.at n=12A014449
- Even numbers in the triangle of Eulerian numbers.at n=7A014450
- Distinct elements occurring in triangle of Eulerian numbers (unsorted).at n=9A014630
- Number of ordered triples of integers from [ 1..n ] with no global factor.at n=24A015631
- Coordination sequence T2 for Zeolite Code CGF.at n=34A019452
- Numbers k such that the continued fraction for sqrt(k) has period 32.at n=34A020371
- Number of partitions of n into 5 unordered relatively prime parts.at n=44A023025
- Catacondensed simply-connected monopentapolyhexes.at n=7A024311
- a(n) = least m such that if r and s in {1/1, 1/2, 1/3, ..., 1/n} satisfy r < s, then r < k/m < (k+1)/m < s for some integer k.at n=37A024833
- a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+3)/m < s for some integer k.at n=18A024844
- Central Eulerian numbers A(2n-1,n).at n=3A025585