2335
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
- 2808
- Proper Divisor Sum (Aliquot Sum)
- 473
- 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
- 1864
- Möbius Function
- 1
- Radical
- 2335
- 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
- 89
- 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
- Number of NP-equivalence classes of self-dual threshold functions of exactly n variables.at n=7A003184
- Number of Q-graphs with 2n edges.at n=6A007170
- Coordination sequence T3 for Zeolite Code AFS and BPH.at n=37A008025
- Coordination sequence T1 for Zeolite Code CAS.at n=30A008063
- a(n) = floor((3rd elementary symmetric function of 2,3,...,n+3)/(2+3+...+n+3)).at n=12A024178
- Every suffix prime and no 0 digits in base 6 (written in base 6).at n=29A024781
- (d(n)-r(n))/5, where d = A026066 and r is the periodic sequence with fundamental period (0,3,1,0,1).at n=29A026068
- Numbers k such that k^2 contains only digits {2,4,5}.at n=7A031154
- Numbers k such that the continued fraction for sqrt(k) has even period 2*m and the m-th term of the periodic part is 9.at n=27A031412
- Least term in period of continued fraction for sqrt(n) is 3.at n=37A031427
- Lucky numbers with size of gaps equal to 8 (lower terms).at n=23A031890
- Lucky numbers with size of gaps equal to 12 (upper terms).at n=26A031895
- Numbers k such that 69*2^k+1 is prime.at n=15A032384
- Numbers k such that 179*2^k+1 is prime.at n=17A032466
- Numbers k such that 201*2^k+1 is prime.at n=13A032477
- Limit of the position of the n-th partition into parts 5k+2 or 5k+3 in the list of all integer partitions sorted in reverse lexicographic order, for integers == 3 (mod 5).at n=42A035408
- Number of partitions of n with equal number of parts congruent to each of 0 and 2 (mod 5).at n=34A035553
- Odd composite numbers n such that the digit sum of n equals digit sum of sum of its prime factors (counted with multiplicity).at n=31A036923
- Numerators of continued fraction convergents to sqrt(831).at n=7A042604
- Numbers k such that the string 7,4 occurs in the base 9 representation of k but not of k-1.at n=31A044318