3367
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4256
- Proper Divisor Sum (Aliquot Sum)
- 889
- 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
- 2592
- Möbius Function
- -1
- Radical
- 3367
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 87
- 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
- Heptagonal numbers (or 7-gonal numbers): n*(5*n-3)/2.at n=37A000566
- Boustrophedon transform of natural numbers, cf. A000027.at n=7A000737
- Deceptive nonprimes: composite numbers k that divide the repunit R_{k-1}.at n=8A000864
- 4-dimensional pyramidal numbers: a(n) = (3*n+1)*binomial(n+2, 3)/4. Also Stirling2(n+2, n).at n=12A001296
- Hex (or centered hexagonal) numbers: 3*n*(n+1)+1 (crystal ball sequence for hexagonal lattice).at n=33A003215
- a(n) = floor(1000*log(n)).at n=28A004240
- a(n) = 1000*log(n) rounded to the nearest integer.at n=28A004241
- a(n) = 4^n - 3^n.at n=6A005061
- Pseudoprimes to base 3.at n=15A005935
- Pseudoprimes to base 10.at n=17A005939
- 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=13A007586
- Stirling numbers of second kind S2(14,n).at n=11A011563
- Differences between two positive cubes in exactly 3 ways.at n=0A014441
- Odd heptagonal numbers (A000566).at n=18A014637
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEL = ZSM-11 Nan[AlnSi96-nO192] starting with a T2 atom.at n=11A019152
- Fermat pseudoprimes to base 4.at n=25A020136
- Pseudoprimes to base 9.at n=33A020138
- Pseudoprimes to base 12.at n=22A020140
- Pseudoprimes to base 16.at n=33A020144
- Pseudoprimes to base 25.at n=37A020153