2294
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 3648
- Proper Divisor Sum (Aliquot Sum)
- 1354
- 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
- 2294
- 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
- Number of inequivalent Costas arrays of order n under dihedral group.at n=16A001441
- Series for second perpendicular moment of hexagonal lattice.at n=6A006738
- Coordination sequence T1 for Zeolite Code LOV.at n=32A008134
- Coordination sequence T2 for Zeolite Code MOR.at n=31A008183
- a(n) is the number of prime powers <= 3^n.at n=9A024623
- Positions of cubes among the powers of primes (A000961).at n=15A024627
- Numbers k such that 165*2^k+1 is prime.at n=39A032459
- a(n) = floor(10000/sqrt(n)).at n=18A033433
- Number of partitions of n into parts not of form 4k+2, 20k, 20k+1 or 20k-1. Also number of partitions in which no odd part is repeated, with no part of size less than or equal to 2 and where differences between parts at distance 4 are greater than 1 when the smallest part is odd and greater than 2 when the smallest part is even.at n=49A036024
- Offsets for the Atkin Partition Congruence theorem.at n=30A036492
- Numbers k such that string 6,6 occurs in the base 8 representation of k but not of k-1.at n=35A044241
- Numbers k such that the string 2,8 occurs in the base 9 representation of k but not of k-1.at n=31A044277
- Numbers n such that string 9,4 occurs in the base 10 representation of n but not of n-1.at n=24A044426
- Numbers n such that string 6,6 occurs in the base 8 representation of n but not of n+1.at n=35A044622
- Numbers k such that string 1,2 occurs in the base 9 representation of k but not of k+1.at n=32A044643
- Numbers n such that string 2,8 occurs in the base 9 representation of n but not of n+1.at n=31A044658
- Numbers k such that string 9,4 occurs in the base 10 representation of k but not of k+1.at n=24A044807
- Numbers whose base-5 representation contains exactly three 3's and one 4.at n=23A045305
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 14.at n=34A051979
- a(0)=1; a(n) = Sum_{j<n, gcd(n,a(j)) = 1} a(j).at n=23A055935