6295
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
- 4
- Divisor Sum
- 7560
- Proper Divisor Sum (Aliquot Sum)
- 1265
- 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
- 5032
- Möbius Function
- 1
- Radical
- 6295
- Omega Function (Ω)
- 2
- 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
- 124
- Smith Number
- yes
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- a(n) = 2*a(n-1) - a(n-2) + a(n-3) + 2^(n-1).at n=11A000253
- Numbers k such that the continued fraction for sqrt(k) has period 68.at n=16A020407
- Numbers n such that phi(3n+1) = sigma(n).at n=41A067233
- Reversible Smith numbers, i.e., Smith numbers whose reversal is also a Smith number.at n=45A104171
- 4th diagonal of triangle in A059317.at n=32A106058
- Maximal number of squares of side 1 in an ellipse of semiaxes n,2n.at n=31A108126
- Numbers n such that n^2-6 and n^2+6 are both prime.at n=29A108403
- Shadow of Pi.at n=29A110621
- Numbers k such that k concatenated with k-7 gives the product of two numbers which differ by 3.at n=2A116110
- Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 1.at n=3A116120
- Sequence S such that 1 is in S and if x is in S, then 6x-1 and 6x+1 are in S.at n=36A147993
- a(n) = smallest number m such that m^2 and n^2 share no common digits and m^2 and n^2 together use all 10 digits, a(n) = 0 if no such m exists.at n=28A158931
- Number of 2 X 2 matrices with all elements in {1,2,...,n} and determinant in {0,1}.at n=35A209992
- Total number of components of the fruitful tree A_n(y_n).at n=7A216810
- G.f. A(x) satisfies: A(x) = 1 + x*A(x)/(1 - 2*x*A(x) - x^2*A(x)^2).at n=7A307412
- Least k such that Sum_{m=1..k} 1/m > Product_{i=1..n} 1/(1 - 1/prime(i)).at n=39A328684
- a(n) = Sum_{d|n} d*d', where d' is the arithmetic derivative of d (A003415).at n=55A348279
- G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 - x)) / (1 - x)^2.at n=10A351437
- Triangle read by rows: row n consists of the n numbers k such that A075254(k) = A346378(n).at n=38A360637
- Number of non-knapsack integer partitions of n.at n=31A366754