1883
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 2160
- Proper Divisor Sum (Aliquot Sum)
- 277
- 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
- 1608
- Möbius Function
- 1
- Radical
- 1883
- 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
- 86
- 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
- a(n) is the number of conjugacy classes in the alternating group A_n.at n=27A000702
- Coordination sequence T1 for Zeolite Code AET.at n=30A008007
- Coordination sequence T1 for Zeolite Code MAZ.at n=30A008144
- If x and y are terms, so is x*y + 9.at n=16A009350
- Coordination sequence T2 for Zeolite Code CGF.at n=30A019452
- Sum of digits in n-th term of A006711.at n=24A022480
- Positions of record values in A030787.at n=41A030792
- 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 5.at n=37A031408
- Coordination sequence T8 for Zeolite Code STT.at n=29A038418
- Coordination sequence T15 for Zeolite Code STT.at n=29A038427
- Coordination sequence T1 for Zeolite Code SFF.at n=29A038437
- Numbers k such that 3 and 8 occur juxtaposed in the base-10 representation of k but not of k-1.at n=37A043244
- Numbers having three 3's in base 8.at n=21A043435
- Numbers having three 2's in base 9.at n=22A043463
- Numbers k such that 3 and 8 occur juxtaposed in the base-10 representation of k but not of k+1.at n=37A044024
- Numbers n such that string 3,3 occurs in the base 7 representation of n but not of n-1.at n=38A044162
- Numbers k such that string 3,3 occurs in the base 8 representation of k but not of k-1.at n=29A044214
- Numbers n such that string 2,2 occurs in the base 9 representation of n but not of n-1.at n=23A044271
- Numbers n such that string 8,3 occurs in the base 10 representation of n but not of n-1.at n=20A044415
- Numbers n such that string 3,3 occurs in the base 8 representation of n but not of n+1.at n=29A044595