2318
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
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 3720
- Proper Divisor Sum (Aliquot Sum)
- 1402
- 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
- 1080
- Möbius Function
- -1
- Radical
- 2318
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 58
- 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
- Numbers that are the sum of 8 positive 6th powers.at n=26A003364
- Numbers that are the sum of 5 positive 7th powers.at n=7A003372
- Numbers that are the sum of at most 5 positive 7th powers.at n=29A004867
- Numbers that are the sum of at most 6 positive 7th powers.at n=37A004868
- Numbers that are the sum of at most 7 positive 7th powers.at n=46A004869
- Coordination sequence T2 for Zeolite Code ERI.at n=35A008094
- Coordination sequence T3 for Zeolite Code MEL.at n=31A008152
- Coordination sequence T7 for Zeolite Code MEL.at n=31A008156
- Expansion of (1+x^4)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=52A008765
- Number of compositions into sums of cubes.at n=41A023358
- Coordination sequence T1 for Zeolite Code ITE.at n=33A027369
- Otto Haxel's guess for magic numbers of nuclear shells.at n=19A033547
- Sequence arising in search for Legendre sequences.at n=18A039794
- Base-5 palindromes that start with 3.at n=29A043008
- Numbers having four 3's in base 5.at n=8A043364
- Numbers n such that string 5,5 occurs in the base 9 representation of n but not of n-1.at n=28A044301
- Numbers n such that string 1,8 occurs in the base 10 representation of n but not of n-1.at n=26A044350
- Numbers n such that string 5,5 occurs in the base 9 representation of n but not of n+1.at n=28A044682
- Numbers n such that string 1,8 occurs in the base 10 representation of n but not of n+1.at n=26A044731
- Number of connected planar graphs with n edges.at n=10A046091