8464
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 15
- Divisor Sum
- 17143
- Proper Divisor Sum (Aliquot Sum)
- 8679
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4048
- Möbius Function
- 0
- Radical
- 46
- Omega Function (Ω)
- 6
- 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
- yes
- 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
- 34
- 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
- yes
- Achilles Number
- no
- Perfect Power
- yes
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Iccanobif numbers: add a(n-1) to reversal of a(n-2).at n=17A014260
- Squares of even pentagonal numbers.at n=4A014770
- Even squares: a(n) = (2*n)^2.at n=46A016742
- a(n) = (3n+2)^2.at n=31A016790
- a(n) = (4*n)^2.at n=23A016802
- a(n) = (5*n + 2)^2.at n=18A016874
- a(n) = (6*n + 2)^2.at n=15A016934
- a(n) = (7*n + 1)^2.at n=13A016994
- a(n) = (8*n + 4)^2.at n=11A017114
- a(n) = (9*n + 2)^2.at n=10A017186
- a(n) = (10*n + 2)^2.at n=9A017294
- a(n) = (11*n + 4)^2.at n=8A017438
- a(n) = (12*n + 8)^2.at n=7A017618
- Binomial transform of Thue-Morse sequence A010059.at n=14A019301
- Squares such that digits of sqrt(n) are not present in n.at n=29A029784
- Squares k such that digits of sqrt(k) are not present in k or k^(3/2).at n=8A029791
- Squares whose digits are all even.at n=8A030098
- Numbers with 15 divisors.at n=12A030633
- Multiplicity of highest weight (or singular) vectors associated with character chi_37 of Monster module.at n=36A034425
- Dirichlet convolution of squares with themselves.at n=45A034714