4843
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5040
- Proper Divisor Sum (Aliquot Sum)
- 197
- 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
- 4648
- Möbius Function
- 1
- Radical
- 4843
- 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
- 165
- 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
- no
- Odd
- yes
Appears in sequences
- Number of ménage permutations.at n=6A002484
- Positions of remoteness 3 in Beans-Don't-Talk.at n=30A005695
- Number of ordered triples of integers from [ 2,n ] with no global factor.at n=31A015633
- Expansion of 1/((1-2x)(1-4x)(1-5x)(1-12x)).at n=3A025964
- Cycle of 2 steps possible for 'concatenate a(n) and nextprime(a(n)) is a prime'.at n=33A034592
- Numbers having four 3's in base 5.at n=22A043364
- Number of different values of i^2+j^2+k^2+l^2 for i,j,k,l in [ 0,n ].at n=38A047801
- Coordination sequence T4 for Zeolite Code SFE.at n=46A057320
- A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to six complementary pairs of ratios which generate simple musical tones (scale steps): 8/7 and 7/4, 6/5 and 5/3, 16/13 and 13/8, 5/4 and 8/5, 4/3 and 3/2 and 11/8 and 16/11.at n=40A060233
- A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to the ratios of 8 musical tones: 8/7 16/11 5/4 4/3 3/2 8/5 11/8 7/4.at n=35A060527
- Numbers k such that sigma(k) divides sigma(phi(k)).at n=26A066831
- Numbers n such that sigma(phi(n))/sigma(n) = 2.at n=17A067382
- a(n) = smallest multiple of prime(n) such that a(n) +1 is a multiple of prime(n+1).at n=38A077338
- a(n) = A139480(n)/2.at n=19A139481
- 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, -1), (-1, -1, 0), (-1, 1, 1), (1, 0, -1), (1, 0, 0)}.at n=9A148267
- Members of A038512 of the form k, k+2, k+6, k+8.at n=5A155511
- Row sums of triangle A156837.at n=55A156838
- a(n) = 3600*n^2 - 6049*n + 2541.at n=1A157838
- Positive numbers y such that y^2 is of the form x^2+(x+167)^2 with integer x.at n=7A159777
- Number of n X 4 1..2 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order.at n=15A166805