4422
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 9792
- Proper Divisor Sum (Aliquot Sum)
- 5370
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1320
- Möbius Function
- 1
- Radical
- 4422
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- yes
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 95
- 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
- a(n) is the solution to the postage stamp problem with 5 denominations and n stamps.at n=14A001210
- a(n) = n*(n + 1)*(n^2 + n + 2)/4.at n=11A001621
- a(n) = 2*n*(2*n+1).at n=33A002943
- Coordination sequence T2 for Zeolite Code APC.at n=46A008033
- a(n) = floor( n*(n-1)*(n-2)/22 ).at n=47A011904
- Coordination sequence T2 for Zeolite Code OSI.at n=43A016431
- Expansion of Product_{m>=1} (1+x^m)^4.at n=12A022569
- Number of alternating compositions, i.e., compositions with alternating increases and decreases, starting with either an increase or a decrease.at n=19A025047
- Sorted Galois numbers.at n=22A028689
- Every run of digits of n in base 10 has length 2.at n=38A033008
- Coordination sequence for A_11 lattice.at n=2A035837
- Product of a prime and the previous number.at n=18A036689
- Coordination sequence T7 for Zeolite Code STT.at n=44A038419
- Numbers whose base-4 representation contains exactly two 0's and four 1's.at n=24A045027
- Hexagonal matchstick numbers: a(n) = 3*n*(3*n+1).at n=22A045945
- Distinct numbers in writing first numerator and then denominator of each element of the 1/5-Pascal triangle (by row).at n=40A046608
- First numerator and then denominator of the elements to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 1's.at n=52A046615
- First numerator and then denominator of the elements to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 1's and 5's.at n=30A046616
- First numerator and then denominator of the elements to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 5's.at n=62A046617
- Numerators of the elements to the right of the central elements of the 1/5-Pascal triangle (by row).at n=42A046618