1435
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 2016
- Proper Divisor Sum (Aliquot Sum)
- 581
- 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
- 960
- Möbius Function
- -1
- Radical
- 1435
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 78
- Smith Number
- no
- Vampire Number
- yes
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
- no
- Odd
- yes
Appears in sequences
- Discriminants of the known imaginary quadratic fields with 1 class per genus (a finite sequence).at n=58A003644
- Positions of remoteness 6 in Beans-Don't-Talk.at n=29A005694
- Coordination sequence T2 for Zeolite Code AWW.at n=27A008046
- Coordination sequence T2 for Coesite.at n=20A008268
- Coordination sequence T1 for Zeolite Code -CHI.at n=24A009846
- Coordination sequence T4 for Zeolite Code RUT.at n=25A009900
- A B_2 sequence: a(n) = least value such that sequence increases and pairwise sums of distinct elements are all distinct.at n=32A011185
- Discriminants of imaginary quadratic fields with class number 4 (negated).at n=51A013658
- Vampire numbers (definition 2): numbers n with an even number of digits which have a factorization n = i*j where i and j have the same number of digits and the multiset of the digits of n coincides with the multiset of the digits of i and j.at n=2A014575
- Number of planar simply-connected polyhexes (or benzenoid hydrocarbons) with n hexagons.at n=7A018190
- Nearest integer to Gamma(n + 2/11)/Gamma(2/11).at n=8A020013
- a(n) = floor(Gamma(n+2/11)/Gamma(2/11)).at n=8A020058
- Pseudoprimes to base 81.at n=47A020209
- Vampire numbers: (definition 1): n has a nontrivial factorization using n's digits.at n=7A020342
- Numbers k such that Fibonacci(k) == 5 (mod k).at n=46A023176
- [ (3rd elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 1 mod 4}.at n=44A024388
- Every suffix prime and no 0 digits in base 6 (written in base 6).at n=24A024781
- Least modulus >= 3 having maximum run of n consecutive non-residues.at n=32A025034
- Numbers k such that the sum of the digits of Fibonacci(k) in base 11 is k.at n=41A025490
- a(n) = Sum_{k=0..2n} (k+1) * A027023(n,2n-k).at n=6A027044