3056
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 5952
- Proper Divisor Sum (Aliquot Sum)
- 2896
- 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
- 1520
- Möbius Function
- 0
- Radical
- 382
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 48
- 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
- From higher order Bernoulli numbers: absolute value of numerator of D Number D2n(2n).at n=3A001904
- a(n) = 1 + n/2 + 9*n^2/2.at n=26A006137
- Coordination sequence T3 for Zeolite Code EPI.at n=35A008092
- Coordination sequence T2 for Zeolite Code MTT.at n=34A008190
- Coordination sequence T2 for Zeolite Code NAT.at n=37A008204
- Coordination sequence T3 for Zeolite Code CON.at n=39A009870
- a(n) = floor( n*(n-1)*(n-2)/26 ).at n=44A011908
- Pseudoprimes to base 49.at n=45A020177
- 5th-order Vatalan numbers (generalization of Catalan numbers).at n=4A025758
- Coordination sequence T3 for Zeolite Code ITE.at n=38A027371
- Denominators of continued fraction convergents to sqrt(570).at n=7A042093
- Numbers k such that the string 6,5 occurs in the base 9 representation of k but not of k-1.at n=41A044310
- Numbers n such that string 5,6 occurs in the base 10 representation of n but not of n-1.at n=33A044388
- Numbers n such that string 5,6 occurs in the base 10 representation of n but not of n+1.at n=33A044769
- Numbers whose base-4 representation contains exactly two 0's and three 3's.at n=25A045074
- a(n)=T(n,n), array T as in A049723.at n=31A049728
- Numbers n such that 245*2^n-1 is prime.at n=12A050881
- Coordination sequence T2 for Zeolite Code MTF.at n=33A057305
- Sum of squares of entries of Wilkinson's eigenvalue test matrix of order 2n+1.at n=16A059834
- Period of the continued fraction for sqrt(2^n-1).at n=23A059866