2317
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 2656
- Proper Divisor Sum (Aliquot Sum)
- 339
- 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
- 1980
- Möbius Function
- 1
- Radical
- 2317
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 32
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- Numbers that are the sum of 7 positive 6th powers.at n=23A003363
- Numbers that are the sum of 4 positive 7th powers.at n=6A003371
- Divisors of 2^30 - 1.at n=27A003538
- Numbers that are the sum of at most 4 positive 7th powers.at n=21A004866
- Numbers that are the sum of at most 5 positive 7th powers.at n=28A004867
- Numbers that are the sum of at most 6 positive 7th powers.at n=36A004868
- Numbers that are the sum of at most 7 positive 7th powers.at n=45A004869
- Coordination sequence T2 for Zeolite Code MEI.at n=35A008147
- Pisot sequence T(14,23), a(n)=[ a(n-1)^2/a(n-2) ].at n=11A010922
- E.g.f.: sec(tan(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+37/4!*x^4+260/5!*x^5...at n=6A012364
- Positive integers n such that 2^n == 2^7 (mod n).at n=53A015927
- Expansion of g.f. 1/((1-x)*(1-2*x)*(1-6*x)).at n=4A016200
- Expansion of 1/(1-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14-x^15).at n=47A017864
- Pseudoprimes to base 31.at n=19A020159
- Pseudoprimes to base 32.at n=29A020160
- Numbers k such that the continued fraction for sqrt(k) has period 46.at n=10A020385
- Fibonacci sequence beginning 5, 13.at n=12A022138
- Positions of records in A030707.at n=43A030712
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 20 ones.at n=33A031788
- Numbers whose set of base-12 digits is {1,4}.at n=18A032824