4635
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 8112
- Proper Divisor Sum (Aliquot Sum)
- 3477
- 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
- 2448
- Möbius Function
- 0
- Radical
- 1545
- Omega Function (Ω)
- 4
- 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
- 90
- 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
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers that are the sum of 9 positive 7th powers.at n=21A003376
- Number of n-dimensional partitions of 5.at n=14A008779
- Expansion of 1/((1-x)(1-4x)(1-8x)(1-10x)).at n=3A021914
- Least k such that k and 4k are anagrams in base n (written in base 10).at n=41A023096
- Number of polyhexes of class PF2 with a particular symmetry.at n=8A030529
- a(n) = floor ( n(n+1)(n+2)(n+3) / (n+(n+1)+(n+2)+(n+3)) ).at n=25A032767
- Incrementally largest terms in the continued fraction for zeta(3).at n=13A033166
- Trajectory of 1 under map n->23n+1 if n odd, n->n/2 if n even.at n=10A033968
- Dirichlet convolution of triangular numbers with themselves.at n=35A034715
- Trajectory of 3 under map n->23n+1 if n odd, n->n/2 if n even.at n=6A037109
- Numerators of continued fraction convergents to sqrt(478).at n=6A041912
- Numbers whose base-5 representation contains exactly two 0's and three 2's.at n=14A045183
- Coordination sequence T3 for Zeolite Code DON.at n=46A047955
- Numbers n such that 223*2^n-1 is a prime.at n=7A050863
- Numbers k such that 299*2^k + 1 is prime.at n=23A053366
- Numbers n such that 7*3^n - 2 is prime.at n=27A058605
- Numbers k such that A065608(k) is a square.at n=42A065063
- Cube of lower triangular matrix of A056857 (successive equalities in set partitions of n).at n=23A078938
- 1/n times A104631(n), the coefficient of x^(2n+1) in the expansion of (1+x+x^2+x^3+x^4)^n.at n=7A104632
- Numbers k > 0 such that (10's complement factorial of k) + 1 is prime.at n=19A109616