4718
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 8112
- Proper Divisor Sum (Aliquot Sum)
- 3394
- 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
- 2016
- Möbius Function
- -1
- Radical
- 4718
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 59
- 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
- Number of atomic species of degree n which are not nontrivial substitutions.at n=12A005227
- Coordination sequence T2 for Zeolite Code HEU.at n=45A008117
- Coordination sequence for CaF2(1), Ca position.at n=23A009923
- Coordination sequence for MgNi2, Position Mg1.at n=17A009936
- Poly-Bernoulli numbers B_n^(k) with k=-3.at n=5A027650
- Coordination sequence T8 for Zeolite Code SFF.at n=45A038435
- Numbers whose base-5 representation contains exactly two 2's and three 3's.at n=10A045273
- Sum of the areas of triangles whose vertices lie on the n X n grid with unit spacing as enumerated in A045996.at n=4A061144
- Unitary untouchable numbers: us(x) = n has no solution where us(x) (A063919) is the sum of the proper unitary divisors of x.at n=32A063948
- a(1)=1, a(n) is the smallest integer > a(n-1) such that the largest element in the simple continued fraction for S(n)=1/a(1)+1/a(2)+...+1/a(n) equals n^2.at n=13A070902
- Number of permutations satisfying i-3<=p(i)<=i+5, i=1..n.at n=7A072855
- Absolute value of difference between counts of uninterrupted runs of 5 primes in A092648 and A092649.at n=9A092650
- Expansion of eta(q^6) * eta(q^10) / (eta(q) * eta(q^15)) in powers of q.at n=32A094023
- Expansion of eta(q^2)eta(q^10)^3/(eta(q^5)eta(q)^3) in powers of q.at n=12A095846
- Array read by antidiagonals: poly-Bernoulli numbers B(-k,n).at n=39A099594
- Array read by antidiagonals: poly-Bernoulli numbers B(-k,n).at n=41A099594
- Numbers k such that the k-th triangular number contains only digits {1,2,3}.at n=10A119098
- Bond series for first perpendicular moment of 4.8 (bathroom tile) lattice.at n=16A120556
- Expansion of q * (chi(-q^3) * chi(-q^5)) / (chi(-q) * chi(-q^15))^2 in powers of q where chi() is a Ramanujan theta function.at n=31A123630
- Natural number transform of Aitken's triangle.at n=26A127740