6183
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 9200
- Proper Divisor Sum (Aliquot Sum)
- 3017
- 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
- 4104
- Möbius Function
- 0
- Radical
- 687
- Omega Function (Ω)
- 4
- 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
- 155
- 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
- no
- Odd
- yes
Appears in sequences
- Number of restricted 3 X 3 matrices with row and column sums n.at n=39A005045
- a(n) = n*(17*n - 1)/2.at n=27A022274
- Numbers that are the sum of 3 distinct positive cubes in 2 or more ways.at n=38A024974
- Numbers that are the sum of 3 distinct positive cubes in exactly 2 ways.at n=37A025400
- Number of factorizations into distinct factors with 2 levels of parentheses indexed by prime signatures. A050347(A025487).at n=48A050348
- Numbers n such that 93*2^n-1 is prime.at n=24A050572
- Number of positive integers <= 2^n of form 5 x^2 + 7 y^2.at n=16A054177
- a(n) = smallest odd number 2m+1 such that the partial sum of the odd harmonic series Sum_{j=0..m} 1/(2j+1) is > n.at n=5A056053
- a(1) = 2; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=41A074338
- a(n) = smallest odd number 2m+1 such that the partial sum Sum_{j=0..m} 1/(2j+1) of the odd harmonic series is >= n.at n=4A092317
- Smallest number which requires n iterations to reach a prime when iterating x + sum of squares of digits of x.at n=49A094658
- Sum of the right diagonal in ordered 3 X 3 prime squares.at n=34A105091
- Coefficients of the A-Rogers mod 14 identity.at n=34A105780
- 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, 0), (-1, 1, -1), (0, 1, -1), (1, 0, 1)}.at n=8A149177
- 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), (1, 1, -1), (1, 1, 1)}.at n=7A149740
- Numerator of Euler(n, 7/32).at n=3A157774
- a(n) is the smallest positive number such that a(n)*n is an anagram of a(n)*6.at n=12A175695
- First of two consecutive numbers with at least one 3 in their prime signature.at n=28A176313
- (1, 3, 5, 7, 9, ...) convolved with (1, 0, 3, 5, 7, 9, ...).at n=21A179903
- Number of partitions of n containing a clique of size 3.at n=33A183560