3844
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 5
Divisibility
- Divisor Count
- 9
- Divisor Sum
- 6951
- Proper Divisor Sum (Aliquot Sum)
- 3107
- 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
- 1860
- Möbius Function
- 0
- Radical
- 62
- Omega Function (Ω)
- 4
- 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
- yes
- 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
- 51
- 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
- yes
- Achilles Number
- no
- Perfect Power
- yes
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Squares that are not the sum of 2 nonzero squares.at n=36A000548
- Coordination sequence occurring in Zeolite Codes AFG, CAN, LIO, LOS.at n=43A008013
- Coordination sequence T1 for Cordierite.at n=37A008251
- Coordination sequence T1 for Zeolite Code ATO.at n=41A008265
- Prefix (or Levenshtein) codes for natural numbers.at n=20A010097
- Even squares: a(n) = (2*n)^2.at n=31A016742
- a(n) = (3n+2)^2.at n=21A016790
- a(n) = (4n + 2)^2.at n=15A016826
- a(n) = (5*n + 2)^2.at n=12A016874
- a(n) = (6*n + 2)^2.at n=10A016934
- a(n) = (7*n + 6)^2.at n=8A017054
- a(n) = (8*n+6)^2.at n=7A017138
- a(n) = (9*n + 8)^2.at n=6A017258
- a(n) = (10*n + 2)^2.at n=6A017294
- a(n) = (11*n + 7)^2.at n=5A017474
- a(n) = (12*n + 2)^2.at n=5A017546
- Smallest square that begins with n.at n=38A018796
- Convolution of integers >= 3 and Lucas numbers.at n=11A023553
- Squares such that digits of sqrt(n) are not present in n.at n=22A029784
- Squares with property that all even digits occur together and all odd digits occur together.at n=38A030476