3224
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 6720
- Proper Divisor Sum (Aliquot Sum)
- 3496
- 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
- 1440
- Möbius Function
- 0
- Radical
- 806
- Omega Function (Ω)
- 5
- 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
- 22
- 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
- yes
- Odd
- no
Appears in sequences
- a(n) = (n+1)*(n+3)*(n+8)/6.at n=24A000297
- Series-parallel numbers.at n=2A000527
- Coordination sequence T1 for Scapolite.at n=36A008262
- Coordination sequence T2 for Scapolite.at n=36A008263
- Every prefix prime in base 9 (written in base 9).at n=30A024769
- a(n) = sum of the numbers between the two n's in A026358.at n=29A026361
- Expansion of (theta_3(z)*theta_3(13z)+theta_2(z)*theta_2(13z))^4.at n=32A028620
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 11 ones.at n=7A031779
- Record values of sigma(n).at n=43A034885
- Triangle of series-parallel numbers.at n=25A036654
- Number of n-node rooted identity trees of height at most 7.at n=14A038086
- Partial sums of primes congruent to 1 mod 6.at n=25A038349
- Denominators of continued fraction convergents to sqrt(91).at n=9A041163
- Numerators of continued fraction convergents to sqrt(734).at n=5A042412
- Numbers k such that the string 2,4 occurs in the base 10 representation of k but not of k-1.at n=35A044356
- Numbers n such that string 2,4 occurs in the base 10 representation of n but not of n+1.at n=35A044737
- Partial sums of A051865.at n=12A050441
- Numbers n such that 89*2^n-1 is prime.at n=11A050570
- Discriminants of real quadratic number fields K with class number 2 such that the Hilbert class field of K is K(sqrt(13)).at n=45A052478
- Triangle T(n,k) of number of strongly connected digraphs on n unlabeled nodes and with k arcs, k=0..n*(n-1).at n=68A057276