3320
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 7560
- Proper Divisor Sum (Aliquot Sum)
- 4240
- 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
- 1312
- Möbius Function
- 0
- Radical
- 830
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 136
- 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) = floor(n*phi^10), where phi is the golden ratio, A001622.at n=27A004925
- Coordination sequence T2 for Zeolite Code ERI.at n=42A008094
- Coordination sequence T1 for Zeolite Code LAU.at n=41A008124
- Coordination sequence T2 for Zeolite Code iRON.at n=40A009882
- Coordination sequence T4 for Zeolite Code RUT.at n=38A009900
- Coordination sequence for FeS2-Pyrite, Fe position.at n=28A009957
- a(n) = n*(2*n + 3).at n=40A014106
- Plaindromes: numbers whose digits in base 3 are in nondecreasing order.at n=40A023745
- a(n) = s(1)*s(n) + s(2)*s(n-1) + ... + s(k)*s(n+1-k), where k = floor((n+1)/2), s = (natural numbers >= 3).at n=28A024312
- Every run of digits of n in base 9 has length 2.at n=39A033007
- a(n) = 2*n*(4*n + 3).at n=20A033587
- Positive numbers having the same set of digits in base 4 and base 10.at n=34A037428
- Numbers n with property that n is a substring of its base 4 representation.at n=4A038104
- Numbers whose base-5 representation has exactly 6 runs.at n=28A043606
- Numbers k such that the string 8,8 occurs in the base 9 representation of k but not of k-1.at n=40A044331
- Numbers n such that string 2,0 occurs in the base 10 representation of n but not of n-1.at n=37A044352
- Numbers n such that string 3,2 occurs in the base 10 representation of n but not of n-1.at n=36A044364
- Numbers n such that string 2,0 occurs in the base 10 representation of n but not of n+1.at n=37A044733
- Coordination sequence T1 for Zeolite Code DON.at n=39A047953
- Coordination sequence T3 for Zeolite Code ISV.at n=40A047960