2293
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 2294
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 2292
- Möbius Function
- -1
- Radical
- 2293
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 107
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 341
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Class numbers associated with terms of A001986.at n=22A001987
- Numbers that are the sum of 5 positive 5th powers.at n=40A003350
- Class 4+ primes (for definition see A005105).at n=42A005108
- Odd numbers not of form p + 2^k (de Polignac numbers).at n=53A006285
- From relations between Siegel theta series.at n=25A006476
- Coordination sequence T1 for Zeolite Code BOG.at n=34A008049
- Coordination sequence T8 for Zeolite Code EUO.at n=30A008103
- Coordination sequence T4 for Zeolite Code LTN.at n=33A008143
- Coordination sequence T2 for Zeolite Code PAU.at n=35A008220
- Coordination sequence T3 for Zeolite Code -PAR.at n=34A009857
- Coordination sequence for FeS2-Marcasite, S position.at n=25A009954
- Base-6 Armstrong or narcissistic numbers (written in base 10).at n=8A010348
- Expansion of 1/((1-2*x)*(1-5*x)*(1-10*x)).at n=3A016299
- Expansion of 1/(1-x^3-x^4-x^5-x^6-x^7-x^8-x^9-x^10).at n=25A017823
- Number of squares on infinite chessboard at <= n knight's moves from a fixed square.at n=13A018836
- Numbers k such that the continued fraction for sqrt(k) has period 65.at n=0A020404
- Smallest nonempty set S containing prime divisors of 8k+1 for each k in S.at n=31A020615
- Primes that remain prime through 2 iterations of the function f(x) = 2x + 5.at n=34A023243
- Primes that remain prime through 2 iterations of function f(x) = 8x + 9.at n=21A023264
- Primes that remain prime through 2 iterations of function f(x) = 9x + 2.at n=34A023265