4798
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7200
- Proper Divisor Sum (Aliquot Sum)
- 2402
- 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
- 2398
- Möbius Function
- 1
- Radical
- 4798
- 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
- 72
- 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 k such that the continued fraction for sqrt(k) has period 64.at n=19A020403
- Numbers whose least quadratic nonresidue (A020649) is 11.at n=28A025024
- Numbers having period-4 6-digitized sequences.at n=19A031197
- 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 68.at n=10A031566
- Numbers k such that k!!! + 1 is prime (0 is included by convention).at n=30A037083
- Coordination sequence T5 for Zeolite Code ESV.at n=46A038414
- Bessel function |Y_0(n)| is a monotonically decreasing positive sequence.at n=23A046963
- a(n) = Sum_{k=1..n} lcm(k,n)/gcd(k,n).at n=29A056789
- Sum of digits = 7 times number of digits.at n=46A061424
- Numbers k such that A001414(k) is a square and sets a new record for squares.at n=19A064463
- Coordination sequence for ReO_3 net with respect to oxygen atom O_1.at n=40A066394
- Numbers n such that phi(2n-1) = sigma(n).at n=26A067230
- Numbers n such that sigma(n)=phi(n*bigomega(n)-1).at n=18A067877
- Numbers k such that sigma(k) = phi(k*omega(k)-1).at n=27A067878
- n times the coefficient of x^n in log[1 + sum(k>=0, x^2^k)].at n=41A092462
- Triangle, read by rows, where row n equals the inverse binomial of column n of square array A100324, which lists the self-convolutions of SHIFT(A003169).at n=31A100326
- a(n) = 3*n^2 - 2.at n=39A100536
- Semiprime function n -> A001358(n) applied four times to n.at n=39A105998
- Shadow of sqrt(2).at n=33A110557
- Coefficients of cubic equations in the form w^2=4*x^3-g2*x-g3 Weierstrass elliptic form whose solutions approximate zeta zeros.at n=38A114984