4033
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4180
- Proper Divisor Sum (Aliquot Sum)
- 147
- 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
- 3888
- Möbius Function
- 1
- Radical
- 4033
- 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
- 69
- 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
- no
- Odd
- yes
Appears in sequences
- Octagonal numbers: n*(3*n-2). Also called star numbers.at n=37A000567
- Strong pseudoprimes to base 2.at n=2A001262
- Number of partitions of n into at most 5 parts.at n=51A001401
- Fermat pseudoprimes to base 2, also called Sarrus numbers or Poulet numbers.at n=12A001567
- Truncated octahedral numbers: 16*n^3 - 33*n^2 + 24*n - 6.at n=6A005910
- Euler pseudoprimes: composite numbers n such that 2^((n-1)/2) == +-1 (mod n).at n=8A006970
- Composite numbers k such that k == +-1 (mod 8) and 2^((k-1)/2) == 1 (mod k).at n=6A006971
- Number of abstract simplicial 2-complexes on {1,2,3,...,n+4} which triangulate a Moebius band in such a way that all vertices lie on the boundary and are traversed in the order 1,2,3,... as one goes around the boundary.at n=4A007817
- Coordination sequence T3 for Zeolite Code DDR.at n=40A008073
- arcsinh(sin(sinh(x)))=x-1/3!*x^3+1/5!*x^5-113/7!*x^7+4033/9!*x^9...at n=4A012031
- Odd octagonal numbers: (2n+1)*(6n+1).at n=18A014641
- Cyclotomic polynomials at x=2.at n=36A019320
- Cyclotomic polynomials at x=4.at n=18A019322
- Cyclotomic polynomials at x=8.at n=12A019326
- Fermat pseudoprimes to base 4.at n=27A020136
- Pseudoprimes to base 8.at n=45A020137
- Pseudoprimes to base 16.at n=36A020144
- Pseudoprimes to base 17.at n=18A020145
- Pseudoprimes to base 19.at n=26A020147
- Pseudoprimes to base 23.at n=33A020151