6026
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
- 8
- Divisor Sum
- 9504
- Proper Divisor Sum (Aliquot Sum)
- 3478
- 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
- 2860
- Möbius Function
- -1
- Radical
- 6026
- Omega Function (Ω)
- 3
- 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
- no
- Narcissistic Number
- no
- Collatz Steps
- 23
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence T1 for Zeolite Code MEP.at n=46A008157
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RSN = RUB-17 K4Na12[Zn8Si28O72].18H2O starting with a T2 atom.at n=12A019219
- Numerators of continued fraction convergents to sqrt(261).at n=5A041488
- Second unsigned column of triangle A051523.at n=4A051564
- Indices of spheres mentioned in A071609.at n=43A076180
- Sum of primes p with n^2 < p < (n+1)^2.at n=26A108314
- Numbers k such that phi(k) + prime(k) is a triangular number.at n=26A115908
- Number of partitions of n into parts relatively prime to 63 and not == 2 (mod 4).at n=47A119952
- Number of base 6 circular n-digit numbers with adjacent digits differing by 4 or less.at n=5A125343
- a(n) = n-th prime * n-th nonprime.at n=31A127118
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, 0, 1), (1, -1, -1), (1, 1, 1)}.at n=7A150357
- Numbers k such that k![7]-1 is prime (where k![7] = A114799(k) = septuple factorial).at n=49A156167
- Fourth right hand column of triangle A165674.at n=9A165676
- Start of a record-breaking run of consecutive arithmetic numbers.at n=8A234801
- Squarefree numbers differing by more than 2 from any other squarefree number.at n=41A268331
- a(n) = (Sum_{j=1..h-1} a(n-j) + a(n-1)*a(n-h+1))/a(n-h) with a(1), ..., a(h)=1, where h = 6.at n=12A283960
- Numbers k at which point A336459(k) appears multiplicative, but A051027(k) does not.at n=10A336561
- a(n) is the number of numbers greater than 1 and up to prime(n)^2 whose prime factors are all less than or equal to prime(n).at n=30A342163
- Expansion of e.g.f. -exp(x * sqrt(1-2*x)).at n=7A362163
- Sphenic numbers k such that none of k-2, k-1, k+1 and k+2 is squarefree.at n=17A362561