3290
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 6912
- Proper Divisor Sum (Aliquot Sum)
- 3622
- 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
- 1104
- Möbius Function
- 1
- Radical
- 3290
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- yes
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- yes
- Harshad Number
- yes
- 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
- yes
- Odd
- no
Appears in sequences
- Number of nonequivalent dissections of an n-gon into 3 polygons by nonintersecting diagonals up to rotation and reflection.at n=39A003453
- Primitive pseudoperfect numbers.at n=48A006036
- 9-gonal (or enneagonal) pyramidal numbers: a(n) = n*(n+1)*(7*n-4)/6.at n=14A007584
- Coordination sequence T2 for Zeolite Code APD.at n=38A008035
- Coordination sequence T2 for Zeolite Code STI.at n=39A008235
- Even pentagonal numbers.at n=23A014633
- Pseudoprimes to base 71.at n=28A020199
- Number of terms in 5th derivative of a function composed with itself n times.at n=13A022815
- Distinct even elements in 4-Pascal triangle A028275 (by row).at n=38A028282
- Even elements to right of central elements in 4-Pascal triangle A028275.at n=35A028286
- Kissing number of n-dimensional lattice Kappa_n.at n=16A028923
- Every run of digits of n in base 9 has length 2.at n=36A033007
- Pentagonal numbers with odd index: a(n) = (2*n+1)*(3*n+1).at n=23A033570
- Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 4 (mod 5).at n=38A035565
- Number of partitions of n with equal number of parts congruent to each of 1, 2 and 3 (mod 5).at n=51A035578
- Numbers of the form k*(k+1)/6 for k = 2 or 3 modulo 6.at n=46A036499
- Values of A038007 not ending in 6 or 8.at n=1A038009
- Numbers n such that string 2,9 occurs in the base 10 representation of n but not of n-1.at n=36A044361
- Numbers n such that string 9,0 occurs in the base 10 representation of n but not of n-1.at n=35A044422
- Numbers k such that string 9,0 occurs in the base 10 representation of k but not of k+1.at n=35A044803