3289
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
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4032
- Proper Divisor Sum (Aliquot Sum)
- 743
- 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
- 2640
- Möbius Function
- -1
- Radical
- 3289
- 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
- 136
- Smith Number
- no
- Vampire Number
- no
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
- a(n) = n*(3*n^2 - 1)/2.at n=13A004188
- Numerator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).at n=9A004677
- 5-dimensional pyramidal numbers: a(n) = n*(n+1)*(n+2)*(n+3)*(2n+3)/5!.at n=9A005585
- Bisection of A001400.at n=36A014125
- Pseudoprimes to base 45.at n=28A020173
- Numbers k such that the continued fraction for sqrt(k) has period 40.at n=22A020379
- Numbers with exactly 7 1's in their ternary expansion.at n=10A023698
- Expansion of x^2*(2 - x + x^2) / ((1 + x)*(1 - x)^4).at n=25A026035
- a(n) = dot_product(1,2,...,n)*(6,7,...,n,1,2,3,4,5).at n=17A026046
- Odd numbers in the (1,2)-Pascal triangle A029635 that are different from 1.at n=40A029639
- Distinct odd numbers in the (1,2)-Pascal triangle A029635.at n=32A029642
- Numbers to the right of the central elements of the (1,2)-Pascal triangle A029635.at n=50A029648
- Numbers to the right of the central elements of the (1,2)-Pascal triangle A029635 that are different from 2.at n=37A029649
- Odd numbers to the right of the central elements of the (1,2)-Pascal triangle A029635.at n=22A029650
- Odd numbers in the (1,2)-Pascal triangle A029635.at n=54A029652
- Odd numbers in (2,1)-Pascal triangle A029653 that are different from 1.at n=38A029657
- Distinct odd numbers in (2,1)-Pascal triangle A029653.at n=30A029660
- Numbers to the left of the central numbers of the (2,1)-Pascal triangle A029653.at n=54A029662
- Odd numbers to the left of the central elements of the (2,1)-Pascal triangle A029653.at n=23A029664
- Numbers to the left of the central elements of the (2,1)-Pascal triangle A029653 that are different from 2.at n=40A029667