3390
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 8208
- Proper Divisor Sum (Aliquot Sum)
- 4818
- 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
- 896
- Möbius Function
- 1
- Radical
- 3390
- 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
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 180
- Smith Number
- yes
- 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 points on surface of tricapped prism: a(n) = 7*n^2 + 2 for n > 0, a(0)=1.at n=22A005919
- Coordination sequence T3 for Zeolite Code MTW.at n=38A008198
- Coordination sequence T2 for Milarite.at n=36A008257
- a(n) = n OR n^3 (applied to ternary expansions).at n=14A008469
- Coordination sequence T3 for Zeolite Code CON.at n=41A009870
- a(0) = 1, a(n) = 28*n^2 + 2 for n>0.at n=11A010018
- Aliquot sequence starting at 966.at n=4A014363
- Multiply by 1, add 1, multiply by 2, add 2, etc., start with 2.at n=11A019465
- a(n) = n*(17*n - 1)/2.at n=20A022274
- a(1) = 5; a(n+1) = a(n)-th nonprime, where nonprimes begin at 1.at n=25A025005
- a(n) = sum of the numbers between the two n's in A026370.at n=29A026373
- Sums of five consecutive squares: a(n) = n^2 + (n+1)^2 + (n+2)^2 + (n+3)^2 + (n+4)^2.at n=24A027578
- "BFK" (reversible, size, unlabeled) transform of 2,2,2,2...at n=15A032043
- Number of ways to partition n elements into pie slices of different sizes other than one.at n=33A032155
- Shifts left 2 places under "DIK" (bracelet, indistinct, unlabeled) transform.at n=14A032291
- Numbers whose set of base 15 digits is {0,1}.at n=10A033051
- a(n) = n * prime(n).at n=29A033286
- a(n) = n^3 + n.at n=15A034262
- Numbers k such that 43^k - 42 is prime.at n=6A034923
- Denominators of continued fraction convergents to sqrt(908).at n=7A042755