2596
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 5040
- Proper Divisor Sum (Aliquot Sum)
- 2444
- 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
- 1160
- Möbius Function
- 0
- Radical
- 1298
- 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
- 146
- 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
- a(n) = floor(n(n+2)(2n+1)/8).at n=21A002717
- Coordination sequence T2 for Zeolite Code AST.at n=37A008037
- Coordination sequence T3 for Zeolite Code EMT.at n=42A008088
- Coordination sequence T5 for Zeolite Code -CLO.at n=45A009854
- Coordination sequence T2 for Zeolite Code WEI.at n=37A009918
- a(n) = floor( n*(n-1)*(n-2)*(n-3)/22 ).at n=17A011932
- Numbers k such that the continued fraction for sqrt(k) has period 34.at n=24A020373
- Place where n-th 1 occurs in A023133.at n=40A022795
- a(n) = (3*n - 1)*(4*n - 1).at n=15A033578
- Number of partitions of n into parts not of form 4k+2, 12k, 12k+1 or 12k-1.at n=57A036017
- Number of 6-ary rooted trees with n nodes and height exactly 5.at n=13A036643
- Trajectory of 3 under map n->15n+1 if n odd, n->n/2 if n even.at n=5A037105
- Expansion of (x^3+2*x+1) / ((x-1)^4*(x^2+x+1)^2).at n=30A038391
- Coordination sequence T4 for Zeolite Code STT.at n=34A038417
- Coordination sequence T4 for Zeolite Code STF.at n=34A038439
- Numbers having three 0's in base 6.at n=28A043371
- Numbers n such that string 0,4 occurs in the base 9 representation of n but not of n-1.at n=34A044255
- Numbers n such that string 9,6 occurs in the base 10 representation of n but not of n-1.at n=27A044428
- Numbers n such that string 0,4 occurs in the base 9 representation of n but not of n+1.at n=34A044636
- Numbers k such that string 9,6 occurs in the base 10 representation of k but not of k+1.at n=27A044809