6098
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 9150
- Proper Divisor Sum (Aliquot Sum)
- 3052
- 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
- 3048
- Möbius Function
- 1
- Radical
- 6098
- 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
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers whose least quadratic nonresidue (A020649) is 11.at n=37A025024
- Exactly half of first a(n) terms of A022300 are 1's (not known to be infinite).at n=13A025513
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 78.at n=1A031576
- Numerators of continued fraction convergents to sqrt(563).at n=5A042078
- Numbers whose base-5 representation contains exactly three 3's and two 4's.at n=17A045306
- Composite numbers not ending in zero that yield a prime when turned upside down.at n=33A048889
- a(n) = 6*2^n - 4*n - 6.at n=10A051667
- Numbers n such that n^2 contains exactly 8 different digits.at n=37A054036
- Number of nonnegative integer 3 X 3 matrices with sum of elements equal to n, up to rotational symmetry.at n=9A054771
- Semiprimes a such that there exist three semiprimes b, c and d with a^3=b^3+c^3+d^3.at n=42A113490
- Triangle T, read by rows, where T(n,k) = Sum_{j=1..n-k-1} [T^j](n-1,k) with T(n+1,n) = n+1 and T(n,n)=0 for n>=0, where T^n denotes the n-th matrix power of T.at n=28A132623
- Column 0 of triangle A132623.at n=6A132624
- 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), (-1, 1, 0), (0, 0, -1), (1, 0, 1)}.at n=8A149239
- a(n) = a(n-1) + 2*a(n-2) - a(n-3) - a(n-4), a(0)=0, a(1)=8, a(2)=10, a(3)=18.at n=15A153382
- Second bisection of A153382.at n=7A153388
- Number of binary strings of length n with equal numbers of 00100 and 01001 substrings.at n=13A164236
- Fourth row of A166091. Positions of 7's in A166086.at n=32A166056
- Number of minimal palindromic words of length n over {1,2} that begin with 1.at n=26A225368
- Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that max(x(i) - x(i-1)) = number of parts of p.at n=50A241830
- Semiprimes having only holey digits (0,4,6,8,9).at n=49A242751