2853
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 4134
- Proper Divisor Sum (Aliquot Sum)
- 1281
- 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
- 1896
- Möbius Function
- 0
- Radical
- 951
- Omega Function (Ω)
- 3
- 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
- 27
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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 partitions into non-integral powers.at n=9A000298
- Coordination sequence T6 for Zeolite Code BOG.at n=38A008054
- Coordination sequence T1 for Zeolite Code LAU.at n=38A008124
- Coordination sequence T3 for Zeolite Code LAU.at n=38A008126
- Coordination sequence T1 for Zeolite Code MEI.at n=39A008146
- Coordination sequence for Paracelsian.at n=36A008260
- Coordination sequence T3 for Zeolite Code VNI.at n=33A009909
- Expansion of 1/(1-x^4-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12-x^13).at n=31A017835
- Coordination sequence T2 for Zeolite Code CGF.at n=37A019452
- Numbers k such that the continued fraction for sqrt(k) has period 48.at n=19A020387
- Numbers k such that Fib(k) == -34 (mod k).at n=23A023169
- Least m such that if r and s in {1/2, 1/5, 1/8,..., 1/(3n-1)}, satisfy r < s, then r < k/m < s for some integer k.at n=35A024823
- a(n) = least m such that if r and s in {1/1, 1/2, 1/3, ..., 1/n} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.at n=32A024840
- Expansion of (1+x^2-x^3)/(1-x)^4.at n=23A027378
- Coordination sequence T1 for Zeolite Code SBE.at n=43A033604
- Coordination sequence T2 for Zeolite Code SBE.at n=43A033605
- Coordination sequence T3 for Zeolite Code AFN.at n=38A038401
- Base-8 palindromes that start with 5.at n=14A043025
- Numbers n such that string 2,0 occurs in the base 9 representation of n but not of n-1.at n=39A044269
- Numbers k such that the string 8,2 occurs in the base 9 representation of k but not of k-1.at n=38A044325